My brother was installing a headunit in his car, a pionner 2100ib or something like that and I wasn't home to help him out with it so I don't know what happened. He thinks it is a short, but he can answer all the questions you guys have. The battery isn't dead, the car won't even make an effort to try and turn over, you know that clicking noise? It doesn't even do that. We can jump the car and it starts but when you start reving the engine the guages on the dash start freaking out and flickering, it doens't look like the battery is dying, but it can't start up by itself...
I think the chip got fucked up or something idk tbh
Please help guys