How many amps? By running off defroster, you may overload fuse/wiring.
Get a relay (radio shack) - take a separate power feed from the battery, put in an inline fuse, and wire the relay to the rear defroster switch so when you switch on rear defroster, relay closes & sends power to mirror heat.
so:
Pos of battery -> inline fuse -> contacts of relay -> mirror(s).
Rear window defroster switch -> coil of relay.
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'05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar.
Traded in '02 Silver Touring Edition w/87,000 miles
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