Humm... That snow Ice stuck in wheel wells and all is a pess. I don't know as far as running electrical wires there since it'* exposed to road debris and or the plastic fender well material I think is too thick that if it was to be heated like a defogger. Running heat ( lines ) from tranny would be good idea.. but the tubing would be thick and may retain too much heat.. puttin a rad there may cause the platic to burn in summer.. The only feasible way I can think of that might work ( currently so far ) is to run some kinda hair dryer system ( maybe ducting from the heater vents ? ) that will heat up the fender well without actually touchin it.. but obviously be able to shut off in summer as to not burn something.. humm... I'm gettin sick of kickin all that crap off ..