XM Radio - can operate with internal antenna March 24, 2003, 06:07:18 pm Yahoo Message Number: 20219There has been some discussion regarding the difficulty of adding an external antenna, including a desire not to penetrate the roof.In February '03 we visited a friend at Anza Borrego. He had an aluminum 5th wheel. I am not certain what the roof material was. He had XM operating from a small internal antenna which he said was new. The antenna was inside the RV on a low shelf. He showed it to me. It was smaller than the "shark fin" and did not look as weatherproof. His receiver can be used in both the RV and in the house.I will inquire as to exactly what the receiver and antenna were.This make one guess that probably this antenna mounted on a bracket inside the escape hatch might work (as has been reported for some GPS antennas.)Happy listeningKen, Patty and little Stephanie '03 26.5 MB Blue on order