How to: Wire G20 radio to S13
 

I just bought my first 240sx. I have a 89' 240sx coupe. The previous owner cut the factory connecter. So I had a stock 99-02 infiniti G20 headunit laying around. So I went to the junkyard and cut off the pig tails for the g20 radio and I wired it up to the wires on the s13.

Wire diagram
___________________S13 wires=======G20 wires____________________________

Constant 12V+~~~~~~Red/Black========Red/Green
Switched 12V+~~~~~~Blue=============Green/White
Ground chassis~~~~~=================Grey/Blue
Illumination~~~~~~~~Red/Blue=========Blue
Dimmer~~~~~~~~~~~Red/Yellow========Red/Yellow
Antenna trigger~~~~Black/Red========Red
Amp trigger~~~~~~~Lt Green/Red=====Lt Green/Red

Front speakers:
Left front (+)~~~~~~Blue/White========Pink
Left front (-)~~~~~~Blue/Yellow========Blue
Right front (+)~~~~~Brown============Violet
Right front (-)~~~~~Brown/White=======Light Green

Rear speaker:
Left rear (+)~~~~~~~Red============Yellow
Left rear (-)~~~~~~~Green===========Brown
Right rear (+)~~~~~~Blue============Red
Right rear (-)~~~~~~Pink============Green

Back of headunit
http://imagizer.imageshack.us/v2/280...661/ca7iTf.jpg

Headunit installed
http://imagizer.imageshack.us/v2/280...907/NDYKCV.jpg

99-02 Infiniti G20.Adapter connectors i will be using when i install aftermarket radio
http://imagizer.imageshack.us/v2/280...536/ghCh2d.jpg

Looks sweet. My only question is that the P11 radio was a Bose unit, meaning it was meant to connect to an amp. Does it have enough power to drive non-amplified speakers?

^ this. Curious how it works.

Well I should have noted I did not wire up the amp trigger. I Couldn't find the amp in the coupe and there was no speakers also. I'm guessing if the s13 is equipped with active speakers and is wired to the amp it would sound better. But for me it sound okay with aftermarket speakers. Its better than nothing lol.