Larry,
I use a Yakima hitch bike rack that I carry my two bikes with. Used to have it on the rear of the CRV but now I have them on the rear of the PT. I ordered a blank18" receiver from ETrailer and bolted it on the hitch mount on the rear. Had to get one that long so it would come out far enough so the bike rack would clear the rear of the coach. Works really well, only hitch is it makes connecting the CRV a little bit harder have learned to just live with it. Far better than the rear of the car.