Anyone with access to directechs.com want to help me out with wiring info for a remote starter on a 2004 Pontiac Grand Prix? Looking to do it myself but I want to check out the wiring info first. Any help is appreciated. Thanks.
This year vehicle is not updated yet.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
I've done two of the 2004 Grand Prixs, if you can wait until tomorrow I will post a full writeup of my notes and wire colors. BUT basically:
Brake - White in the plug on the left side of the underdash BCM - 2 White wires in the plug so make sure you test it also the car needs to be on for this wire to test
Constant - RED - Thick - Remove the passenger side underdash panel and slice the harness coming in from the firewall. There will be a bunch of thick red wires here so take your pick. There is NO thick wires at the ignition cylinder or at the BCM.
Ignition - Pink - Located in the large plug on the BCM side facing the firewall. THIN gauge. There are two pinks in this plug both will test as ignition wires but only one will allow the car to be started!
Heater - Brown - Located in the large plug on the BCM side facing the firewall. THIN gauge.
Starter - Yellow - Located in the large plug on the BCM side facing the firewall. THIN gauge.
Horn - Brown - Located in the small plug on the BCM side facing the firewall.
Parking Lights - BROWN / White (Don't remember if POS or NEG offhand so test it!)
You will need a 555U or something similar. Don't bother taking out the radio that cavity is sealed off from the ignition cylinder it won't help you any.
Dash Dissasembly - The radio trim bezel has to come off before the underdash panel can be removed.
Should get you started like I said I have a full writeup at the shop (w/ BCM pin numbers!) I will post tomorrow.