Hasn't done this for a long time, but turn on the key and wait for bootup, radio comes on, start vehicle. Radio drops off with a blank screen and doesn't come back on (no audio) for 30 seconds to 2 minutes and then it's fine.
Maybe time to have my stock radio replaced
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hope that is all it is.... that damn harness is tied to almost everything else!
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currently running mine with the radio disconnected. It only has Bluetooth working without volume. Even the backup camera is nonfunctional. Will stay that way until I replace it with an aftermarket unit. No more tie in for me if my code doesn't trip.