I'm trying to replace my radio/cd player in my 2000 silverado and have no idea how to get the radio out after I have removed the dash. It has what looks like clips that seem I should press them down to release and then pull out, but I don't know if there is anything else that must be unhooked to get the radio to actually come out. I know there will be cables and wires behind to remove, but I've not gotten it out of the dash yet. Anyone feel like helping a complete novice with advice?