Fuel door release on 1998 Volvo V70 not working. Tried looking for motor behind rear panel but mine seems to have a shroud plastic welded behind the fuel door location. The switches on my car seemed to slowly be failing on every function so I wonder if it's the release switch and not the motor that is the problem. There are only three wires behind the switch. Can you tell me which two connected would be for the fuel door release?