 Radio Help
Epic,
I do not have a diagram but may be able to help. I have installed a lot of radio's. First you will need a logic probe, essentially a flashlight bulb with a needle type wire to probe positive wires and a alligator clip to hook to ground, any frame or metal piece grounded. Using this you will be able to determine your memory wire, or constant power supply with the key off and power wire with key on. When you find your positive the light will light up. Mark them. As for your speakers that is easy. After you determine which wires do not have any power and be sure to check ALL WIRES with key on with the logic probe (juicing a live wire with a battery can cause problems), get a AA battery. If you have an AMP you will know which is the remote power turn on because you insatalled the amp, mark and elminate that. You should have 8 wires remaining pluse a ground nine in total. With the remaining wires using one at a time press one wire onto the positivre terminal of the battery cycle through the wires until you find the match for that speaker, you will know because the AA will cause the speaker to make a click or pop sound (not enough to damage it) indicating you have found the speaker. Cycle through each pair and mark each FL, FR, RL, RR. The next issue is to determine which is positive and negative to the speaker that requires a little tracing but can be done. It is a little time consuming but if you are planning on putting in a decent stereo rerun with monster wires (from Bestbuy or Radio Shack) and run new clean wires to your speakers, you then will know which are pos and neg. It is not that bad and makes it nice if you put in a nice stereo in and want to prewire for a AMP by running a RCA wire set at the same time. Most of the wires run under the rocker cover along the door and through the grommits in the door. If you run new wires use zip ties to hold them against existing wire routes. I know this seems like a lot but if you take the time it will make it easier for future upgrades. I hope this helps,
Ahren | 
