I have the avh p 4300dvd in my wifes car. I took it to be detailed and when I got it back the HU wouldn't work. It has power the display says source off. No buttons work, the touch screen doesn't work. I used the reset button that didn't work. The shop admits that it worked when dropped off and that it went to source off after disconnecting the battery to power wash the engine bay. Any idea what is going on?
Thanks,
Adam