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Hello, first off I have been loving the Grom interface with wireless Apple CarPlay on the old vehicle! I recently hooked up an aftermarket back up camera and have been having issues. When I put the vehicle into reverse the camera comes on about 30% of the time, sometimes the screen does not change at all, sometimes it switches to the CarPlay settings screen and sometimes it goes to a black screen that says device not connected. When the device not connected screen comes up I have to turn the vehicle off and back on to get the Grom unit to wrok again. I have found out that if I change to the FM radio before I put the vehicle in reverse the camera usually works, about 70% of the time it works when I turn it to FM first. I checked the firmware and it is all up to date.
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Contact our technical team at https://gromaudio.com/support.html We will review your specific setup.
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