My battery went dead a few weeks ago. Ever since I changed the battery my unconnected screen won’t turn on. I have tried all of the reset like disconnecting the battery and holding the + and - together and holding down the power and tuner buttons. Nothing works. I took it to a car audio place to put in an aftermarket 8.4in screen and they couldn’t get that one to work either. They said it’s likely a power issue with the wiring. They said they could get it to work with one of their other radio screens they have in stock that is compatible with android auto and Apple CarPlay, they said back up camera would work and can even still control blowers from the screen. And ideas what might be the wiring issue when my battery went dead?