Thanks for for the advice,our fusion is a 2.5, we put it in stay in neutral mode with no wiring from coach, bb worked fine. Stopped 70 miles to run toad engine for 10 min. made mistake of putting car in park to start and found the batt. flat ! Couldn't get back to neutral !!! Had to burn one escapee's jump. Got to st. pk. ran a 12v. charge line from 7pin on coach. Next trip went 80mi. stopped to check toad batt. fine but no power at 12v both power points ??? Got to koa checked toad fuses ect. all good start toad and power is back. So next i will run 12v always on