Auto shop sold me the wrong battery even after I took the old one in. When we put it in the horn started blowing and we had to disconnect the battery. Took it to a shop and was told that the wrong battery had done damage to the alternator relay and several other things were showing up on their computer on the ECM. Scared to death it's going to be expensive and I don't know that much about cars but I love my RAV and it's been a great one since I ordered it new in 2006. 69,000 miles. Going to try to get the auto shop that sold me the wrong battery to pay but... What am I looking at in $$$ and is the dealership the only place that can fix it. Can it be flashed or buy new? Thanks!!!