[kbill45@gmail.com]

Well it was the antenna. I Just got back to chevys after several years of Toyota Land Cruisers and was not aware that this thing was in 3 pieces. Installed new Pioneer and could not determine where the ant. wire was. One post mentioned the receiver down by the gas pedal. Aha! there was the antenna wire not even connected. Plugged it in to the new unit and nothing. Picked one from the scrap pile and radio worked fine. I wanted a cd plus mp3 so nothing lost.

Thanks for the responses.