Just got everything wired up in my truck and now the CD player doesn't turn on! I am using all aftermarket speakers/amplifiers, so the only wires to the headunit are constant, acc, and ground......

The temp control display blinks on and off and the dash display is REALLY dim....that and whenever the truck is on, the temp and gas gauge flicker....

Anyone have any idea what is going on?? I have installed hundreds of radio's before....but never seen anything like this!

 

none of the gauges function either.....(rpm, speedo, etc)

 

turns out the ground WIRE isn't truely a ground....you have to use the ground strap on the back of the unit.......odd, very odd