I've installed my empeg into a 05 ford focus and used the factory radio wiring harness using a Scosche harness that I've tested with a multimeter and it works fine until the car moves and the unit goes into standby like its not getting enough power or i shut the car off.

i'm getting about 13-14v on the ignition and the constant 12v line.

it will do it if the car is running or not just as long as there's movement.

ive tried tapping the aux power that i have for powering other devices such as cell phone chargers ect.

the connections are solderd and heat shrunk and i can jiggle all the connectors as hard as i want and it wont go into standby i can move the empeg in any motion and it still wont do it.

im out of ideas. the only thing i can think of is that its getting some type of interference from the ECU or the alternator.