I just bought an Sony Xplod cd reveiver and had it installed at ABC Warehouse. I'm happy with the receiver but I'm questioning they way they installed it. They used the aftermarket harness to wire into the back of the receiver, but they didn't use a bypass for the factory amp at all. It's still plugged in like it was with the stock headunit. Is this incorrect?
Also, now when I turn the volume down all the way there is a static hum that can be heard from the speakers, almost like some type of interrference. Any ideas on what this is and how to get rid of it? Thanks a lot for your help.