Somebody, please help. I'm in dire need of a wiring diagram for the audio. There is no factory plug, so a harness kit will not work. If anybody has any ideas on this, please help.
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Jason
try this:
https://www.installdr.com/Harnesses/GM-Wiring.pdf
If this isn't correct (wrong colors), do you know how to hardwire? With your multimeter set to DC voltage, find the wire with constant power. Now turn the key on, and find the accessory wire. Now set your meter to resistance. Check for the wire with continuity to ground (use the key ring or rim of the cigarette lighter). Turn on the parking lights to double check this isn't a dimmer wire- if it is, it'll show 12 volts. Now check for continuity between pairs of wires. You're looking for around 4 ohms (speakers). As you find them, use a 9 volt battery and touch the wires to the posts. You'll hear a pop from the speakers. If the speaker cone pushes out (have an assistant visually check), the polarity is correct (the wire connected to the positive battery terminal is the positive speaker lead, and vice versa). If it pulls in, the polarity is backwards.
The diagram was extemely helpful. I thought I could find it on my own, but managed to blow the fuse for my dash lights (which I've yet to locate, any suggestions). I believe next time I'll save the frustration and just use the harness adapter! Thanx again for your assistance.
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Jason
I'm glad it helped you. If I remember correctly (I haven't done this in a while) your fuse block is on the side of your dash board (driver's side). There should be a pop off cover panel. See if the cover has tells which fuse is for which circuit (it probably does). If not, test the fuses one by one with a multimeter until you find the one that's blown. I think the one you're looking for is in the passenger compartment, not under the hood.