If you have no power to the switch, start checking the circuit to the switch starting with the fuse. You probably know, the Ram fusebox on the left kick panel is very wishy-washy. It's easy to screw up fuse contacts if you run too much power through them.
If the fuse is good, check for +12 at the fuse supply side of the fuse socket, then check the "hot" side wire coming out of the fuse. If that's all OK, look at the connectors going to the mirror switch.
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Charlie Smith - Columbus, Ohio
'97 2500 4x4 auto, Suncoast TC/VB, #5 16.5*, Arrowcraft DRW, Aerotanks D60, KDP
'96 3500 2x4 auto, Goerend TC/VB, #5 16* DDP2
355hp/970tq, D60 tank, KDP