Sorry for long post. Here it goes. Need some help bad.
I bought my son a 2012 mustang for his birthday. Everything was good. We put an aftermarket pioneer radio in it and took out the factory. He also has two Rockford 12s in trunk. About 6 months after install my son let the battery go dead in the car. We had no issues until this point. I jumped the battery and as soon as I did that’s when things went crazy. Several dash lights keep coming on randomly, the heat and a/c come on sparingly,( when lights on dash go out)
I put a new battery in the car. Took out radio to check wiring, took to ford. They ran a 50$ scan said they couldn’t find issue would need to do a 400$ code scan to diagnose each issue. I have done all the resets that you find online. I’m at my wits end. Someone please help. Any advice is appreciated.