Having some issues with my '94 TA sound system. Its the 10 speaker system but its not a monsoon or bose as far as I can tell. No bose amp or sub. The rear seat speakers both went out at the same time. So I started ripping into it to try a speaker change with some a few other aftermarket ones. Still no sound. The fronts work, and the hatch ones work but the front passenger seems to get slightly louder at times. I dug into the wiring a little and found some little ac delco box that resembles an amp in the rear passenger panel and ive read that it amplifies the rear seat speakers only? If this is so, why are all the other speaker wires going into (or out of) it? My computer at work is down so I dont have wiring diagrams at my use right now so im kinda screwed. Can anybody tell me exactly how this box works and what it does so i can either work around it to install different speakers with the stock head unit right now? It looks as if every speakers' leads come out of the box, but theres only 3 wires going in? One black, one orange, and one pink? Im assuming ground, power, and remote on in that order. If this is so, where is the signal? Help, this has just got me boggled.

 

Ok, a little more info. I pulled the plug on the delco box and the front and hatch speakers still work, so what in the hell does this box do!? And why do all the speakers' leads go to it? One more thing I noticed when I pulled my door panel off to pull the front speakers. Theres a board attached to the speaker housing with what looks to be like a capacitor and 2 little coils (1 on each end of the board),.....any idea what these are and if I should wire them to the new speaker or remove them? Im guessing they're to keep the speakers from running low on power when the bass hits to keep from underpowering them (capacitor acts like a backup power source for brief moments)?

 

the box that says "delco" on it is the amplifier. the little "capacitors" you are talking about are actually the crossovers. they split the frequencies going to the mid and tweeter. if you replace the speakers, you should make sure to get the same ohm rating that is on the stock speaker. this will probably be hard to do with aftermarket since most aftermarket speakers are 4 ohm. it is easiest to replace EVERYTHING imo. i sold all of my stuff on ebay (got $300 for it!!!) and bought new stuff. total out of pocket cost: $100!!! and that was with some of the best stuff money can buy. cdt speakers, eclipse hu, diamond amp. of course i did run across some VERY GOOD DEALS