My Case 2090 dome light does not work. Have the cab top off. Dome light works properly when a "jumper wire" from the battery is hooked directly to it. Light turns on with the rocker switch and on when the door is opened. So everything is OK except the power source. Is the factory wire to the dome light hot all of the time or only when the key is turned on? I see the dome light is fused. Fuse is OK. I do have a problem finding 12 volt power on either side of the fuse socket with a trouble light. If I can't get it figured out I can run a new dedicated wire up inside the cab post to it from 12 volt key switched power I found in the "cab to chassis socket". Any ideas on how the dome light works in a Case 2090 would be appreciated. I did post over on the Case forum yesterday with no response. Thank you.