Car Audio Install Resources:

Head-unit Wiring

There may be different colours in your harness since radios vary from model to model. If you are not sure about colour codes, contact us first! Fortunately, most manufacturer's are trying to use the same wire codes. With minor variations, the first table applies to most aftermarket head units. The second table covers older Pioneer headunits (up to 1998).

*Please note that Green/Black refers to a Green wire with a Black stripe.


Alpine, Pioneer (1999 and up), Kenwood, Sony, JVC, etc
P o w e r
Memory (+12v Constant) Yellow
Ignition (+12v Switched) Red
Ground (-) Black
Dimmer Pink/White (Alpine only)
Power Antenna Blue
Amplifier Turn-on Blue/White
Phone Mute Light Blue (Sony only)
S p e a k e r s
Right Front (+) Grey
Right Front (-) Grey/Black
Left Front (+) White
Left Front (-) White/Black
Right Rear (+) Violet
Right Rear (-) Violet/Black
Left Rear (+) Green
Left Rear (-) Green/Black


Pioneer (Models before 1999)
P o w e r
Memory (+12v Constant) Orange
Ignition (+12v Switched) Red
Ground (-) Black
Illumination Yellow
Phone Mute Yellow/Black
Power Antenna Blue
S p e a k e r s
Right Front (+) Grey
Right Front (-) Grey/Black
Left Front (+) Green
Left Front (-) Green/Black
Right Rear (+) Grey/Red
Right Rear (-) Black/Grey
Left Rear (+) Green/Red
Left Rear (-) Black/Green