Thanks for all of the replies fellas. I knew I was getting ripped by the install place, but I just wasn't 100% sure why everyone bypassed the factory amp. I figured if it wouldn't cause problems that I would leave it connected.
Viss1- That adapter is exactly what I'm looking for. Have you used it, or do you know of anyone who has used it? I just want ot make sure everything is legit with it before I go and get one.
Once again, thanks guys. Your knowledge, & time is greatly appreciated.