Since you've already confirmed that there is a controller there to plug into you'll just need to check if the connector is a 6-pin or 9-pin (pictured below). If you have a 6-pin connector then the Advent Air RV Air Conditioner # ACM150 would be a compatible fit. If you have a 9-pin connector then you'll just need to pick up an adapter # ACCOLKIT as well to connect the new unit to the controller. view full answer...