So along with a few other things I'm going through with the car I just bought, I noticed that the stereo in my T/A sounded like ***. I bought a Sony to replace the POS one he had in there, and when I pulled it out what do I find to no surprise? The harness chopped all to crap and taped together. So I pull everything out and wire in the new radio using all weather proof connectors and get everything looking good again. Turn on the new radio and it still sounds like ***. So I pull off the door panels and rear covers to find Sony's in back, and Kickers in front. At this point I think they must be out of phase. Well after digging a little more I did find 1 out of phase, but what the culprit was he had kept the front factory tweeters and had them wired in parallel with the kickers. Also the hatch factory speakers where wired the same with the rear Sony's. I was afraid this might end up messing up the new radio I just bought so I disconnected the hatch and tweeters and now the system sounds great. Basically what I'm wanting to know is can a HU be wired in parallel like that and not damage it? And if so, then why would it sound worse? I would think even splitting the power between 2 speakers per channel, the boost in power would make up for it.

 

was it a stock monsoon or bose system,,, read the sticky,, might be wired up wrong,,, my guess is its upgraded wrong.