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<blockquote data-quote="arsonbob" data-source="post: 3116020" data-attributes="member: 567698">So here is the run down, I took my sister&#039;s headunit out of the stock fitting (not undoing any harness or cord during this) to check to make sure all the wires were attached properly and not lose or burnt etc.The original problem I was trying to fix was that one side of car (front and rear speakers) cut out pretty often, not completely, but become weaker then come back in stronger then back to normal. The car has no amp mind you.So then after putting the headunit back in, the screen&#039;s LED was no longer working (it wouldn&#039;t light up, but showed the numbers very dimly), the radio and speakers did work at this point. I then took the head unit completely out unattaching the harness and antenna wires. I tried to pop the face plate off and realized it was much harder and more risky than I wanted to deal with, stopped, then tried to put the headunit back in. NOW the sound output does not seem to be working. Nor any other controls. What it seems like is that the radio is permanently switched to the off position, showing the time only. The radio is from a 1999 Pontiac Grand Prix, and says theftlock on the face plate.Could this possibly be some sort of fail-safe? How do I undo this?</blockquote>

[QUOTE="arsonbob, post: 3116020, member: 567698"] So here is the run down, I took my sister's headunit out of the stock fitting (not undoing any harness or cord during this) to check to make sure all the wires were attached properly and not lose or burnt etc. The original problem I was trying to fix was that one side of car (front and rear speakers) cut out pretty often, not completely, but become weaker then come back in stronger then back to normal. The car has no amp mind you. So then after putting the headunit back in, the screen's LED was no longer working (it wouldn't light up, but showed the numbers very dimly), the radio and speakers did work at this point. I then took the head unit completely out unattaching the harness and antenna wires. I tried to pop the face plate off and realized it was much harder and more risky than I wanted to deal with, stopped, then tried to put the headunit back in. NOW the sound output does not seem to be working. Nor any other controls. What it seems like is that the radio is permanently switched to the off position, showing the time only. The radio is from a 1999 Pontiac Grand Prix, and says theftlock on the face plate. Could this possibly be some sort of fail-safe? How do I undo this? [/QUOTE]

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