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I posted about this a while ago, but need more technical info.
On a 86 that is my fathers. We are having trouble with the bose speakers staying on and draining the bat. Also have a whistle that varies with RPM. We disconected the 2 back speakers. This helped but the front right is whinning and draining the bat also although not as bad as the back two were. Where are the relays that control whether or not these speakers are on? As I understand it, they all have their own amps, get power all the time, but are controlled as to on/off by a relay. Correct me if I am wrong? The speakers are going to be replaced, but I feel the reason they went is cuz they were on all of the time.
I didn't have the battery drain problem due to the Bose sound system, I did blow enough fuses to make your head swim though. My rears ended up making a LOUD popping sound then igniting. I chose to replace the system with a better stereo, amp and speakers all the way around. I know that the amp's in the speakers can and will fry (cause it happened to me). I don't think it's safe, plus you're not popping fuses, so sounds kinda like a fire waiting to happen...do yourself a favor, swap out that sound system and get a nice Alpine XM MP3/CD/CD -RW player....that's the way to go.
:smash: