Which wires do you plug your heated shield wires into? Mines not working. I used the little red and black wires on the chaincase side.

Normally it's a black/yellow wire for power on all Ski-doos in the last 15 years or so (unless they've changed them on the REV, which I doubt).

Check it with a volt meter -- set to AC - you should see somewhere around 14 volts I think.