im planning to do this as well.. but i have a different option and i dont know even know how to do it.. 
the question is.. is it possible? is it safe? :dontknow:
- buy jdm mirrors
- install like OEM (clean)
- install heated mirrors (i know... i have an 02
) (can buy mirrors for '06 RSX 76253-S6M-C41 = Left & 76203-S6M-C41 = Right)
- swap the housings
- NO switches will be use (folding mirrors switch to ignition & heated mirrors switch to defroster)
the question is.. is it possible? is it safe? :dontknow: