I am a new Audi owner and have a couple technical questions. 1997 A6 Quatro Wagon

1)Door light switches, Lights stay on (intermittently). How do I test which one of the 5 doors it could be?

2)Backlight on Odometer, outside temp., and shift indicator does not work any suggestions, causes?

 

there is a 3 position switch next to each light, off, on , on when open & close door.

try using the stalk that comes out of the dash, it is the light dimmer for the dash.