SOURCE: brake bypass jvc kd-av7010
Make sure the brake bypass has voltage to it..try hooking it up the the ignition sense
SOURCE: i have a JVC KD avx77 USB problem
check if the cable is broken or come loose from the backside of the HU. you will need to do this through a car audio fitment guy.
also, mention what exactly you you mean it stopped working.
did you do the basic stuff like checking if the usb device is working condition, selecting usb in source etc?
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