I have a 2003 Acura TL, and I have been having issues with the sound system. The sound is coming out garbled to the two speakers that do work, but all the speakers work when tested with an amp separately, I tried using a new head unit and replacing the equalizer, but that didn't fix the issues. I tried plugging wiring an amp directly into the wiring harness for each separate speaker while the car was on and while it was off, but the sound issue persisted.

Is there something else that could be causing these issues? Any help would be greatly appreciated.

 

Sounds Amp related hmm???

 

Do the Phantom upgrade on your amp if you want a quick fix. Gut it and redo the whole system if you have money and time.