Pre-Wired Guitar wiring harness | Bullet Mustang kit | Right Handed

£74.99 GBP
Tax included Shipping calculated at checkout.

Pot Value
Pot shaft
Treble Bleed mod (for volume pot)

Please use the tabs below to read through the information about this Pre-Wired harness kit. From a run down of what the kit does, to important fitting information and full specs.

Order times

I usually make harnesses to order, due to the variety of spec options that could be chosen across the whole range. The current turnaround time for a harness order is around 5-7 working days depending on quantity of orders in at the time and your order will be updated accordingly when it is dispatched. This turnaround time doesn't include the transit time. Thanks for your patience whilst I get your harness made!

Model description

It is widely known that the Squier Bullet Mustang offers a superb low budget modding platform, and there is a huge community for modifying and improving on these cool offset guitars. This is my high spec retrofit/upgrade harness offering for the Bullet Mustang!

From the factory, despite being supplied with two humbucker pickups, the original wiring features 250k pots. So depending on your plans for the modification, I have decided to offer these with the choice of 250k pots or 500k pots. Most people seem to change pickups anyway on these, so whether you're going for something totally different or not, these two pot spec choices should have you covered. But if for any reason you need something different, just drop me a message and we can see what we can do.
As a general rule single coils are paired with 250k pots, humbuckers and P90s are paired with 500k pots. I hope this helps :)
If you have any questions about specs, feel free to drop me a message, happy to help where possible!

Product options

Pot value?
I offer this kit with a choice of 250k or 500k pot values. Which you choose will ultimately depend on what style of pickups you have, or what tonal response you prefer from them.
Generally speaking, P90s and Humbuckers are optimal with 500k pots, and single coils are optimal with 250k pots. 
From the factory, despite being supplied with two humbucker pickups, the original Squier wiring features 250k pots. So depending on your plans for the modification, I have decided to offer these with the choice of 250k pots or 500k pots. Most people seem to change pickups anyway on these, so whether you're going for something totally different or not, these two pot spec choices should have you covered.

Pot shaft type?
You can choose between split, or solid shaft pots for this kit. This perhaps will ultimately be decided by which style/size of control knob you intend to use.

Split shaft pots have a adjustable split shaft diameter of 5.95mm w/ 24 splines. You will need control knobs that push-fit and suit these measurements. 

Do not attempt to force fit smaller, metric/import spec control knobs onto the imperial USA spec pots, doing this can damage the pot.

The CTS Solid shaft pots have a solid shaft diameter of 1/4" / 6.35mm. You will need control knobs that suit these measurements and secure to the pot via a grub screw on the control knob.


If you do require a US spec control knobs, I do carry a selection of popular options in stock and they can be viewed in the Control Knob category on the store.

With or without Treble Bleed?
First up, what does it do? A Treble Bleed kit takes the 'high' treble tone frequencies out of the circuit at the volume pot, and puts them back in the circuit as the signal leaves the volume pot. This means the treble frequencies are prevented from naturally bleeding out of the circuit as your turn your volume pot down. The result is a smoothed out treble and a more uniform tone from 1 to 10. Reducing the treble drop out as the volume pot rolls off. Some guitar players wouldn't be without a treble bleed, and many have never used one on their guitars. Truth is, it is very much personal preference. If you like the idea of retaining treble as you roll your volume pot down, then a treble bleed is for you! As standard I use the .001uF & 120kOhm parallel wired treble bleed mod. 

Fitting information

Ultimately this kit is intended to be an upgrade retrofit spec kit for a Squier Bullet Mustang model. So does require some small modifications to fit to the far eastern made Squier. But I have tried to help with as much info as possible as well as writing in depth general fitting guides and a simple to follow wiring diagram. There are also multiple useful how-to guides regarding wiring work found HERE too. But in this section you'll find some important fitting notes that will hopefully help you assess whether the kit is suitable for your exact Bullet Mustang or what is required to allow it to fit correctly.

Can I fit this kit myself?
This ultimately comes down to whether you own the equipment needed to correctly and safely install the kit, or how comfortable you feel working on your own guitar. I do feel that installing a pre-wired guitar harness is do-able for many guitarists but only if the correct tools are used and care is taken to ensure you do not damage the kit, your guitar or yourself! There are detailed installation guides here on my website, as well as simple to follow wiring diagrams all to help make the process as easy as possible and in my experience, these have helped thousands of my customers carry out their own install. But if for any reason you have concerns about fitting the kit yourself which is entirely understandable, then I'm sure you'll agree that it is likely best to have a professional fit the kit and help ensure your purchased kit, and your beloved guitar are both looked after and worked on correctly. 
If you are local to me (Stourbridge, West Midlands) I take on guitar work no problem at all so will certainly be able to help install your Signature Series harness. 

Will the pots/jack fit my pickguard and jack plate?
The components I use in my Signature Series wiring kits are for the most part, USA imperial specification. If you're fitting this harness to a far east built guitar such as a Squier or similar brand, then you may have to widen the holes in the pickguard/control plate to accommodate for these imperial measurement pots. The Switchcraft 3 way toggle switch requires a 0.472" / 12mm mounting hole. The CTS pots and Pure Tone multi contact jack have a mounting thread shaft diameter of 0.369" / 9.38mm so I recommend for ease of install a control plate with 0.394" / 10mm pot/jack mounting holes. You can easily widen the holes in the Pickguard and control plate too if you would prefer, I recommend doing this safely with a step cutter drill bit. I also offer this as a service so if you would like me to widen your plate for you, do please get in touch and we can organise this additionally.

What control knobs will fit?
The kit uses CTS Split shaft pots or CTS Solid shaft pots depending on the option you choose. Split shaft pots have a adjustable split shaft diameter of 5.95mm w/ 24 splines. You will need control knobs that push-fit and suit these measurements. 
Do not attempt to force fit smaller, metric/import spec control knobs onto the imperial USA spec pots, doing this can damage the pot.

The CTS Solid shaft pots have a solid shaft diameter of 0.25" / 6.35mm. You will need control knobs that suit these measurements and secure to the pot via a grub screw on the control knob.


If you do require a US spec control knobs, I do carry a selection of popular options in stock and they can be viewed in the Control Knob category on the store.

Which switch tip will fit?
Much like with the control knobs, the Switchcraft pickup selector in this kit is USA spec, with imperial thread sizes. Therefore you need a imperial thread switch toggle tip to suit Switchcraft toggles.

If you do require a US spec switch tip, I do carry a selection of popular options in stock and they can be viewed in the Switch Tips category on the store.

Specs/Parts included

- Choice of pot values/specs:
2x CTS '450' Series 500k audio taper (Volume and tone)
2x CTS '450' Series 250k audio taper (volume and tone
- 1x .022uF Mustard tone capacitor in the lead circuit
- 1x Switchcraft right angle 3 way toggle switch
- 1x Pure Tone multi contact jack socket
- Gavitt USA made cloth covered 22AWG wire
- 20AWG Tinned copper ground
- Soldered using R-Tech Premium Lead-Free (Sn95.5Ag3.9Cu0.6) 22swg Solder wire 
RoHS Compliant

Please note - wiring kit does not include new control knobs/switch tip etc but does include the switch/pot/jack mounting nuts, washers. Please see above spec/item list for full detailed run down of what is included or drop me a message if you aren't 100% sure.

Why these spec parts over others available?
Simply put, component choice has been one of the most important parts of my product development. I have worked on guitars for many years, and built these kits professionally since 2015, and as a result have been able to see and experience working on the majority of components available on the market. In my findings, A/B testing and more, I have found the components I decided on for my Signature Series to be the most reliable, best tolerance and great functioning parts to use to help customers get the most out of their instruments. I use CTS '450' series premium spec pots as they have a tight tolerance, and will consistently provide me with accurate value, as well as very solid build quality. I use trusty 'Mustard' style polyester film 'tone' capacitors as in my opinion they simply can't be beat for great value, solid construction, solid lead-outs, super tight tolerances and reliable tone/function. I would personally much rather use a trusty Mustard for example over something like a paper in oil, as from experience that are so much more reliable to use. This is from carrying out a lot of A/B testing, both tonally, as well as armed with the multi-meter for testing values and actual tolerances, as well as handling them to test construction quality for long lasting reliability in use. I use the brilliant 'Pure Tone' Multi Contact Jack sockets as they are incredibly reliable, due to their additional contact points for both tip and sleeve. I use CRL, Oak and Switchcraft brand switches across the range as these are built very well, with care will last for many years to come and have long since provided me with reliable use professionally. All kits are wired up with quality USA made Gavitt wire, it's great to work with, super consistent gauge and provides me with a very reliable quality item for my kits. I totally understand that with anything guitar, it is subjective, but I have, with an open mind, thoroughly tested a broad variety of components over the years and these have all become the items I trust to use every day. 

Harness FAQ's

I've been proudly making, developing and installing my pre-wired guitar harnesses since the beginning of the Home of Tone back in 2015 (time flies when you're having fun right!). Although I feel I do my best in covering as much information as possible across the various product listings, fitting guides, wiring diagrams and more, I thought it might be helpful to put together an FAQ's page that covers some of the general additional questions I get asked. You can view these Harness FAQ's HERE

'Ground Bug' deal!

Looking forward to installing your new wiring, but a little worried about making the ground connections to the pot casings? First time soldering and hear the horror stories of frying pots, or just simply want to neaten up your installs? Then the awesome 'Ground Bug' will help with any of these concerns, beginner or pro modders alike. The Ground Bug is a pot washer that fits between the pot casing and the pickguard/body and has a number of lugs (much like with the main signal connections on the pot for example) to which you can very easily solder your ground wire connections too. Completely removing the worry and risk of soldering a pot casing, something I know many guitarists complain about having to learn to do. 
I have been stocking Ground Bugs for a while, and they really are the perfect match for a pre-wired harness as they further help you with your installs. So I have set up a 10% off Ground Bug deals when purchased with a Home of Tone Signature Series pre-wired harness. This is an automatic discount code, so all you need to have is a Signature Series kit, and a Ground bug in your cart, and the discount will automatically be applied to the bug for you! I personally recommend the 'Daddy Long Legs' version of the ground bug for the tight bullet mustang control cavity. Click HERE to view the Daddy Long LegsGround Bug listing

Do you make custom harnesses?

I'm afraid I do not offer a custom harness service. Only kits developed, tested and listed on my website are the available kits. So no custom schematics etc. If you happen to be local to my office, then I do carry out custom work in house, but in regards to shipped out pre-wired harnesses I do not offer custom kits. I am however happy to use different pot values or cap values within reason if you have a specific requirement that differs to the specs listed above. If this is relevant to yourself then please get in touch to discuss further to ensure the request is possible. 

Please use the tabs below to read through the information about this Pre-Wired harness kit. From a run down of what the kit does, to important fitting information and full specs.

Order times

I usually make harnesses to order, due to the variety of spec options that could be chosen across the whole range. The current turnaround time for a harness order is around 5-7 working days depending on quantity of orders in at the time and your order will be updated accordingly when it is dispatched. This turnaround time doesn't include the transit time. Thanks for your patience whilst I get your harness made!

Model description

It is widely known that the Squier Bullet Mustang offers a superb low budget modding platform, and there is a huge community for modifying and improving on these cool offset guitars. This is my high spec retrofit/upgrade harness offering for the Bullet Mustang!

From the factory, despite being supplied with two humbucker pickups, the original wiring features 250k pots. So depending on your plans for the modification, I have decided to offer these with the choice of 250k pots or 500k pots. Most people seem to change pickups anyway on these, so whether you're going for something totally different or not, these two pot spec choices should have you covered. But if for any reason you need something different, just drop me a message and we can see what we can do.
As a general rule single coils are paired with 250k pots, humbuckers and P90s are paired with 500k pots. I hope this helps :)
If you have any questions about specs, feel free to drop me a message, happy to help where possible!

Product options

Pot value?
I offer this kit with a choice of 250k or 500k pot values. Which you choose will ultimately depend on what style of pickups you have, or what tonal response you prefer from them.
Generally speaking, P90s and Humbuckers are optimal with 500k pots, and single coils are optimal with 250k pots. 
From the factory, despite being supplied with two humbucker pickups, the original Squier wiring features 250k pots. So depending on your plans for the modification, I have decided to offer these with the choice of 250k pots or 500k pots. Most people seem to change pickups anyway on these, so whether you're going for something totally different or not, these two pot spec choices should have you covered.

Pot shaft type?
You can choose between split, or solid shaft pots for this kit. This perhaps will ultimately be decided by which style/size of control knob you intend to use.

Split shaft pots have a adjustable split shaft diameter of 5.95mm w/ 24 splines. You will need control knobs that push-fit and suit these measurements. 

Do not attempt to force fit smaller, metric/import spec control knobs onto the imperial USA spec pots, doing this can damage the pot.

The CTS Solid shaft pots have a solid shaft diameter of 1/4" / 6.35mm. You will need control knobs that suit these measurements and secure to the pot via a grub screw on the control knob.


If you do require a US spec control knobs, I do carry a selection of popular options in stock and they can be viewed in the Control Knob category on the store.

With or without Treble Bleed?
First up, what does it do? A Treble Bleed kit takes the 'high' treble tone frequencies out of the circuit at the volume pot, and puts them back in the circuit as the signal leaves the volume pot. This means the treble frequencies are prevented from naturally bleeding out of the circuit as your turn your volume pot down. The result is a smoothed out treble and a more uniform tone from 1 to 10. Reducing the treble drop out as the volume pot rolls off. Some guitar players wouldn't be without a treble bleed, and many have never used one on their guitars. Truth is, it is very much personal preference. If you like the idea of retaining treble as you roll your volume pot down, then a treble bleed is for you! As standard I use the .001uF & 120kOhm parallel wired treble bleed mod. 

Fitting information

Ultimately this kit is intended to be an upgrade retrofit spec kit for a Squier Bullet Mustang model. So does require some small modifications to fit to the far eastern made Squier. But I have tried to help with as much info as possible as well as writing in depth general fitting guides and a simple to follow wiring diagram. There are also multiple useful how-to guides regarding wiring work found HERE too. But in this section you'll find some important fitting notes that will hopefully help you assess whether the kit is suitable for your exact Bullet Mustang or what is required to allow it to fit correctly.

Can I fit this kit myself?
This ultimately comes down to whether you own the equipment needed to correctly and safely install the kit, or how comfortable you feel working on your own guitar. I do feel that installing a pre-wired guitar harness is do-able for many guitarists but only if the correct tools are used and care is taken to ensure you do not damage the kit, your guitar or yourself! There are detailed installation guides here on my website, as well as simple to follow wiring diagrams all to help make the process as easy as possible and in my experience, these have helped thousands of my customers carry out their own install. But if for any reason you have concerns about fitting the kit yourself which is entirely understandable, then I'm sure you'll agree that it is likely best to have a professional fit the kit and help ensure your purchased kit, and your beloved guitar are both looked after and worked on correctly. 
If you are local to me (Stourbridge, West Midlands) I take on guitar work no problem at all so will certainly be able to help install your Signature Series harness. 

Will the pots/jack fit my pickguard and jack plate?
The components I use in my Signature Series wiring kits are for the most part, USA imperial specification. If you're fitting this harness to a far east built guitar such as a Squier or similar brand, then you may have to widen the holes in the pickguard/control plate to accommodate for these imperial measurement pots. The Switchcraft 3 way toggle switch requires a 0.472" / 12mm mounting hole. The CTS pots and Pure Tone multi contact jack have a mounting thread shaft diameter of 0.369" / 9.38mm so I recommend for ease of install a control plate with 0.394" / 10mm pot/jack mounting holes. You can easily widen the holes in the Pickguard and control plate too if you would prefer, I recommend doing this safely with a step cutter drill bit. I also offer this as a service so if you would like me to widen your plate for you, do please get in touch and we can organise this additionally.

What control knobs will fit?
The kit uses CTS Split shaft pots or CTS Solid shaft pots depending on the option you choose. Split shaft pots have a adjustable split shaft diameter of 5.95mm w/ 24 splines. You will need control knobs that push-fit and suit these measurements. 
Do not attempt to force fit smaller, metric/import spec control knobs onto the imperial USA spec pots, doing this can damage the pot.

The CTS Solid shaft pots have a solid shaft diameter of 0.25" / 6.35mm. You will need control knobs that suit these measurements and secure to the pot via a grub screw on the control knob.


If you do require a US spec control knobs, I do carry a selection of popular options in stock and they can be viewed in the Control Knob category on the store.

Which switch tip will fit?
Much like with the control knobs, the Switchcraft pickup selector in this kit is USA spec, with imperial thread sizes. Therefore you need a imperial thread switch toggle tip to suit Switchcraft toggles.

If you do require a US spec switch tip, I do carry a selection of popular options in stock and they can be viewed in the Switch Tips category on the store.

Specs/Parts included

- Choice of pot values/specs:
2x CTS '450' Series 500k audio taper (Volume and tone)
2x CTS '450' Series 250k audio taper (volume and tone
- 1x .022uF Mustard tone capacitor in the lead circuit
- 1x Switchcraft right angle 3 way toggle switch
- 1x Pure Tone multi contact jack socket
- Gavitt USA made cloth covered 22AWG wire
- 20AWG Tinned copper ground
- Soldered using R-Tech Premium Lead-Free (Sn95.5Ag3.9Cu0.6) 22swg Solder wire 
RoHS Compliant

Please note - wiring kit does not include new control knobs/switch tip etc but does include the switch/pot/jack mounting nuts, washers. Please see above spec/item list for full detailed run down of what is included or drop me a message if you aren't 100% sure.

Why these spec parts over others available?
Simply put, component choice has been one of the most important parts of my product development. I have worked on guitars for many years, and built these kits professionally since 2015, and as a result have been able to see and experience working on the majority of components available on the market. In my findings, A/B testing and more, I have found the components I decided on for my Signature Series to be the most reliable, best tolerance and great functioning parts to use to help customers get the most out of their instruments. I use CTS '450' series premium spec pots as they have a tight tolerance, and will consistently provide me with accurate value, as well as very solid build quality. I use trusty 'Mustard' style polyester film 'tone' capacitors as in my opinion they simply can't be beat for great value, solid construction, solid lead-outs, super tight tolerances and reliable tone/function. I would personally much rather use a trusty Mustard for example over something like a paper in oil, as from experience that are so much more reliable to use. This is from carrying out a lot of A/B testing, both tonally, as well as armed with the multi-meter for testing values and actual tolerances, as well as handling them to test construction quality for long lasting reliability in use. I use the brilliant 'Pure Tone' Multi Contact Jack sockets as they are incredibly reliable, due to their additional contact points for both tip and sleeve. I use CRL, Oak and Switchcraft brand switches across the range as these are built very well, with care will last for many years to come and have long since provided me with reliable use professionally. All kits are wired up with quality USA made Gavitt wire, it's great to work with, super consistent gauge and provides me with a very reliable quality item for my kits. I totally understand that with anything guitar, it is subjective, but I have, with an open mind, thoroughly tested a broad variety of components over the years and these have all become the items I trust to use every day. 

Harness FAQ's

I've been proudly making, developing and installing my pre-wired guitar harnesses since the beginning of the Home of Tone back in 2015 (time flies when you're having fun right!). Although I feel I do my best in covering as much information as possible across the various product listings, fitting guides, wiring diagrams and more, I thought it might be helpful to put together an FAQ's page that covers some of the general additional questions I get asked. You can view these Harness FAQ's HERE

'Ground Bug' deal!

Looking forward to installing your new wiring, but a little worried about making the ground connections to the pot casings? First time soldering and hear the horror stories of frying pots, or just simply want to neaten up your installs? Then the awesome 'Ground Bug' will help with any of these concerns, beginner or pro modders alike. The Ground Bug is a pot washer that fits between the pot casing and the pickguard/body and has a number of lugs (much like with the main signal connections on the pot for example) to which you can very easily solder your ground wire connections too. Completely removing the worry and risk of soldering a pot casing, something I know many guitarists complain about having to learn to do. 
I have been stocking Ground Bugs for a while, and they really are the perfect match for a pre-wired harness as they further help you with your installs. So I have set up a 10% off Ground Bug deals when purchased with a Home of Tone Signature Series pre-wired harness. This is an automatic discount code, so all you need to have is a Signature Series kit, and a Ground bug in your cart, and the discount will automatically be applied to the bug for you! I personally recommend the 'Daddy Long Legs' version of the ground bug for the tight bullet mustang control cavity. Click HERE to view the Daddy Long LegsGround Bug listing

Do you make custom harnesses?

I'm afraid I do not offer a custom harness service. Only kits developed, tested and listed on my website are the available kits. So no custom schematics etc. If you happen to be local to my office, then I do carry out custom work in house, but in regards to shipped out pre-wired harnesses I do not offer custom kits. I am however happy to use different pot values or cap values within reason if you have a specific requirement that differs to the specs listed above. If this is relevant to yourself then please get in touch to discuss further to ensure the request is possible.