So I was recently at Z auto Sound because I had just purchased a new pioneer head unit from a local electronics store, and for some reason it wasn't working with my XM receiver. So I decided I better go see the professionals at a car audio place. I found myself at Z auto Sound. One of the guys checked out my problem and said that it's very simple. "just reverse the cable" give me $30 and I'll get it working for you. Great! SO I'm waiting around for like 30 minutes, and the guy comes up to me and say... read full review »