Fix it: No Sound on Factory Stereo Dodge Grand Caravan .Wiggle those wires.

Suddenly no sound from the stereo on the Dodge Grand Caravan. Visually it works. The fuses are good. But no sound. 1. Removed head unit to check wires at back, 2. Dropped glove box down to see other wires in this case modulator unit and antenna 3. Disconnected vehicle battery and reconnected hoping for a reset. 4. There’s an amp hidden behind rear panel but it must get trigger from head unit to turn on. Nothing still 5. Put all wires back up behind glove box and I mean lots of wires given the modulator with rca Connections and antenna connections Problem appears to be solved. Wiggle those wires.