Hey guys...Im a new to the site and I have a 2001 tahoe ls and i am having a couple of problems. First of all, I am installing a new cd player and i have all of the connections correct but i am getting no sound at all?...Second, I tried to put the stock unit back in and when i did, the radio would not work at all and the gear indicator/odometer and the orange message center do not work, could it be a blown fuse or what??....Sorry for the long post but I really need some help with these problems and any help would be appreciated! Thanks!