Like many on these boards I have a non-working heating system on my 2008 GL1800 (VII A). The grips and seats are all out. I have followed the trouble shooting guidelines in the manual ? and I am at the end of the guidelines (and my rope). ? The manual says "Replace the heater control unit with a new known-good one and recheck". My problem is finding a known good one. Local service/dealers are not helpful. Even from the factory I cannot be certain the part is good. (STUFF ? HAPPENS!) So is there anyone out there that lives near Sacramento CA that has a known good unit that I can plug into my bike? ?