I have a 2020 crossroad with 67k miles. The backup camera sometimes has blank screen, upside down 8mage or wavy lines . Also the ac and radio won’t power on when I start the car. But if I slam the driver door in anger when it happens it will work even the camera when I go to restart. Could this be a ground wire issue or loose power wire issue behind he radio/ view screen module? Or is it something that is failing and have to look at replacing the whole center module? Thank for any help I can get.
