Originally Posted by
Pound
^^^that only works for stopping the engine. when you restart it, the HU power is interrupted while engine restarting. Also, i think it's good practice when restarting the engine, to pause on the "run" position for a few seconds before hitting the starter, so that the trim tabs and controller can go thru it's pre-start checks before firing up the motor. Some people have had issues w/the tabs getting out of sync w/the computer and causing issues, and this may avoid that. ...but this delays the HU from turning back on in a timely manner. Rewiring to a separate ACC switch is the best option (IMO).