I have an LX865 that is giving me fits. Dash lights up when you turn the key. It doesnt matter if you are in service or run mode. I disconnected the wiring for the seat switch and seatbelt at the bulkhead connector in the engine compartment. Dash still lights up. I thought maybe it was a defective dash so I swapped a spare in. It still lights with the key switch. I checked the wiring at the dash, ignition switch and service/run switch. Nothing is hacked up or jumpered. What am I missing?? Think the service/run switch is bad??