We went to take the alternator out of our pontiac grand am and the red (positive charge to battery) on the alternator cut clean off about eight inches down. Now I cant find the wire. Is there a harness or something that I need to look for? Does anyone have a wiring diagram to help me locate it?

SOURCE: 2000 pontiac bonneville wiring harness

u can get one to use out of a srvice book at the libruary

SOURCE: 1980 Pontiac Turbo Trans Am.........Alternator Wiring

THE PLUG FOR THE ALTERNATOR CONTAINS MAINLY TWO WIRES THE TACH WIRE AND 12VOLTS TO POWER THE REGULATOR. AND THEN THE CABLE RUNNING TO THE BATTERY FROM THE BACK OF THE ALTERNATOR. ALSO TRY AUTOZONE.COM IT MAY PROVIDE U A DIAGRAM FOR INSTALLATION

Marvin

• 85242 Answers
• Posted on May 30, 2009

SOURCE: I want to install a stereo in a 2001 grand am se but the wires were cut.

Here are the wires colors of the harness and what they do.

2001 Pontiac Grand Am Car Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox for switched power.
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: Pink
Car Stereo Amplifier Location: Mounted behind trim in the left side of the trunk.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

SOURCE: 2000 grand am wiring diagram

the12volt.com


Radio 12v orange + Radio Ground Radio Ignition yellow + Radio Illumination Factory Amp Turn-on Power Antenna dk. green LF Speaker +/- tan - gray RF Speaker +/- lt. grn - dk. grn LR Speaker +/- brown - yellow RR Speaker +/- dk. blu - lt. blu

SOURCE: need spark plug wiring diagram

This should be the firing order diagram for that vehicle and let me know if you need any help to understand this diagram, or if you require any further assistance.