2004 Impala SS with factory amp

I need to know where I can connect my aftermarket amplifiers turn on lead. Is there a factory amp turn on lead that I can splice into?

Man, surely SOMEONE out there knows about this. Does a haynes manual have these diagrams in it?

Someone in a different forum gave me this, now all i gotta figure out is which wire to splice.


2004 Chevy Impala

audio info

Radio 12v orange + radio harness
Radio Ground black - radio harness
Radio Ignition (Class 2 Serial Data)
Radio Illumination gray (dimmer) + radio harness
Factory Amp Turn-on same as power antenna wire
Power Antenna white + radio harness
LF Speaker +/- tan - gray +,- radio harness
Notes: If equipped, the amplifier is under the rear deck.
RF Speaker +/- lt. green - dk. green +,- radio harness
LR Speaker +/- brown - yellow +,- radio harness
RR Speaker +/- dk. blue - lt. blue +,- radio harness

car wiring info

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
Interface Module: Category:
Immobilizer Bypass Required:
Yes Type:
Passlock II

42 views and nobody has ANYTHING to offer? There's gotta be somebody out there with knowledge of this. Please help.

Ok. D-Day is tomorrow, Feb. 02.   Still no suggestions? I've come down to either paying out my rear for the install, or using a test light to find a switching power fuse in the fuse box, and going that route. Somebody please help.

There is a white wire at the amp in the trunk or at the radio that is used to turn on the amp. It is a 12 volt + trigger. I hope this helps.

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sparky

Can anyone confirm this?? Sparky, I'm not questioning your information, but I've been told by a couple of people that this white wire does not provide enough of a signal to turn the amp on. Also, I want to make absolutely sure that I am splicing into the right wire, especially with the risk of deploying my air bags or frying my whole electrical system.

It works. If you are really that concerned then cut the white wire before it gets to the amp and use it to trigger a relay to turn on both your amp and the factory one. Use a volt meter to check that you have the correct white wire. The correct white wire is in cavity B5 of the larger plug in the amp. It is also used to turn on the antenna module.

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sparky