My big ignorant guess in running it through a relay is that the power is only supplied to the end use gadget when the bike is on, thereby eliminating the possibility of leaving it cooking overnight.Thanks fellas for the informative replies. Save me looking for a buried plug which doesn't exist. I'll be doing the project after Christmas. I just wonder what the need for the relay is, as opposed to wiring direct to the battery from the rheostat? All the supply power goes through it anyways.
I have a friend who rides a Victory factory fitted with electric grips. Nothing but problems for him and the dealership. They can't keep them working. One or the other or both have quit.I have a 2009 model fully optioned because we only have 2 options in OZ, Basic or Fully optioned . I had to take my bike back after 3 months because one of the hand grips weren't working. It took the dealer 2 days to replace and when i saw what was involved I cringed. vertually all the front and dash was removed because one side of the plug was situated in the middle of the bike. Haven said that if your 2008 model is not equipped with heated handles then what Joe in Calif said is good to go and much easier to do.
Subject to being corrected, (because I haven't checked with my volt meter), but I was under the impression that the OEM accessory connection only powered on with the ignition turned on. If not then the relay would make sense.Actually YV, the relay makes it a 'switched' item, requiring the ignition to be turned on. Not a big deal without it if you don't mind replacing batteries often if you're the forgetful type