Hello - so my old battery died and before it died, everything was working fine - so I jumped the car and took it to the closest mechanic. They did their battery tests and replaced the battery. But after that, the airbag lights are still on and the stereo gets no power - completely blank. I took it to the audi dealership and they wanted to charge me 5 hours of diagnostic time to figure out the problem. And then I said to just see if they can fix the stereo - and they couldn't even pull the stereo out. So I'm sure something somewhere is shorted, but the car is an Audi A4 1998, and it has 173000 miles on it, so I don't want to spend too much money on it. My question is, is it possible to somehow just hack it so that the stereo gets power ? I just want to listen to some music in the car

Thanks all...