Well despite all of the grief I am having lately with my new marquis sapphire, I did have two successful projects today. I upgraded the headlights using the youtube video (twice as bright now) and I installed a heat vent into the toilet room. Using the existing Auquahot system under the fridge, this was very easy to do. I just dismantled the heater box under the fridge, use a 3.12 " hole saw to cut a hole in the left side of it, adapted a 3" dryer type fitting to the side, and ran a flexible aluminum vent through the bathroom wall and into the bottom drawer area. Then I removed the drawer front from the drawer itself, drilled it out for a 3" heat duct that I bought at Beaver Coach, clamped it all together and used two small angle brackets to mount the drawer front to the cabinet. It doesn't get huge flow, because the fan is blowing straight out from the bottom of the fridge, but it is such a small room that it works perfectly.
Why they would put a porcelain toilet in there, with a seat that might as well be refrigerated, and not plumb heat into the room is beyond me. ( my 2000 Marquis and 2004 Monterey were the same) I almost can't wait to try it out tomorrow after my Baileys and coffee.