I've had my 05 Pleasure Way Excel for a little over a year and just noticed a wire hanging loose in the lower section of the front grille the other day. Pulled it out and at the end was a three prong 120 ac plug with a cap on the end. I chased the wire as far as I could reach up over the frame rail on the drivers side then lost it with out finding where it went to. I can only assume it is for an engine block heater. However, I have a V10 gasser under the hood, not a diesel. Would this be a standard factory item in 05 for a V10?