Auto Start Install on 2004 Impala

12volts	red (x2)(common 60A)	+	ignition harness
Starter	yellow	+	ignition harness
Second Starter	N/A
Ignition	pink	+	ignition harness
Second Ignition	dk. green	+	ignition harness
Third Ignition	N/A
Accessory	orange	+	ignition harness
Second Accessory	brown	+	ignition harness
Notes: This wire must be powered as an accessory wire. If powered as a second ignition, the car will not crank.
Keysense	lt. green	-	ign harn or BCM, gry 16P plg, pin B1
Notes: The BCM is under the driver side dash, above the parking brake lever.
Power Lock	ORANGE / black	-	BCM, gray 24 pin plug, pin B3
Notes: Lock is negative trigger thru a 470 ohm resistor. Unlock is a straight negative trigger. MUST use relays. The BCM is under the driver side dash, above the parking brake lever.
Power Unlock	same as power lock wire
Lock Motor	see notes
Notes: Installation of factory keyless upgrade alarm is not recommended on this vehicle because the door lock motor wires rest at approximately 7 volts.
Unlock Motor	see lock motor notes
Parking Lights+	yellow (F), BROWN / white (R)	+	passenger junction block end of dash
Parking Lights-	white	-	BCM, pink plug, pin A2
Notes: The BCM is under the driver side dash, above the parking brake lever. Must diode isolate this wire from the BCM to avoid Service Engine Soon light. See DirectFax document 1600 for wiring information.
Hazards	same as turn signal wires
Turn Signal(L)	lt. blue (F), yellow (R)	+	turn signal switch
Turn Signal(R)	dk. blue (F), dk. green (R)	+	turn signal switch
Reverse Light	lt. green	+	passenger junction block end of dash
Door Trigger	dk. blue (L), dk. blue/wht (R)	-	BCM, gray 16 pin plug, pins A8, A1
Notes: Use both wires and diode isolate each. Have to also diode isolate from the BCM to prevent false alarms. Refer to DirectFax document 1076 for wiring information. The BCM is under the driver side dash, above the parking brake lever.
Dome Supervision	gray	-	BCM, gray 24 pin plug, pin A8
Notes: The BCM is under the driver side dash, above the parking brake lever.
Trunk/Hatch Pin	RED / black	-	BCM, gray 24 pin plug, pin A11
Notes: The BCM is under the driver side dash, above the parking brake lever. Have to also diode isolate from the BCM to prevent false alarms. Refer to DirectFax document 1076 for wiring information.
Hood Pin	N/A
Trunk/Hatch Release	black	-	BCM, gray 16 pin plug, pin A7
Notes: The BCM is under the driver side dash, above the parking brake lever.
Power Sliding Door	N/A
Factory Alarm Arm	arms on lock with door open
Factory Alarm Disarm	lt. green	-	BCM, gray 16 pin plug, pin B3
Notes: The BCM is under the driver side dash, above the parking brake lever.
Disarm No Unlock	see factory alarm disarm
Tachometer	white	ac	Ignition Control Module
Notes: On the 3.4L it is on the top center rear of the engine. On the 3.8L it is on the top right front of the engine.
Wait to start	N/A
Brake Wire	white	+	brake pedal switch
Parking Brake	lt. green	-	BCM, gray 16 pin plug, pin B6
Notes: The BCM is under the driver side dash, above the parking brake lever.
Horn Trigger	black	-	BCM, pink plug, pin B5
Notes: The BCM is under the driver side dash, above the parking brake lever.
Memory Seat 1	N/A
Memory Seat 2	N/A
Memory Seat 3	N/A

Immobilizer Bypass Module:	Required: Yes	Type: Passlock 2	Part #: 555L or 555T
Notes: The Passlock 2 wire colors are yellow, black, and white (not used). Standard on all models.

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heres a tip... dont eat yellow snow.here is another. the door triggers, locks, brake, factory arm disarm are available at the drivers fuse panel. while you are there you can grab 12v lights at the switch. even though dei says not to use them i have done over 100 of these with no problem. and the trunk nearby at the switch. i think this is easier than bending over to grab the  bcm.