Just got my car back from getting a new tranny in, and i go to turn on the radio, the radio turns on, the antenna goes up, but I get no sound. Took the radio ut, all the wires are connected, but i have no sound except for a buzz/whine from the speakers. Could this be the headunit, or the amp...if so where is the amp located, and could it be bypassed? Its a 1988 420 sel

Disregard this message, i solved my own problem, the fader switch was disconnected.