Hi, new to the forums and I have a question. I own a 2001 Olds Alero. It has the deluxe sound system which pretty much sucks and I want to replace it. I went to bestbuy to get a wiring harness and the audio guy told me that new GMs (2001+) require a special wiring harness that costs $100 and apparently is a huge pain to install. He told me without it, if I tried to install an after market deck, that my other electrical things in the car would not work (dash lights, chimes, etc.). Anyways, so my question is, has anyone else heard about this? Was this guy legit or was he just trying to make me buy an overpriced wire harness?
