I replaced the whole system in the WRX with something more powerful. The problem is that I'm getting a vibrating type noise from the right door at certain medium volume levels with bass. I thought is was the Kenwood speakers that I started with but now I'm noticing it with the Infinity ones I replaced them with. It's like there is some plastic or something that sound presure is making vibrate.
Well I guess my next step is to pull the door covers and silicone all that plastic sheet down to the door. Anybody else had this problem and what did you do to fix it?