XM antenna; where to mount?
I put XM on my class C. I put the antenna on the dash; no dice. The loft interfered with the reception terribly. I then out it way out in the fender as far as it would go and it was much better, but...
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I put my antenna on the roof and wired through one of the pre-existing holes in the roof, hid the wire behind trim around the door and onto the dash where the radio is located. I put a 8" X 8" metal plate on the roof with silicone an the antenna is magnetic so it attached easily. I get good reception an all directions. The antenna is on the top of the satellite cover. As for reception, I got very good XM reception in the Yukon 3 years ago, other than when driving on the north side of a mountain. The satellites are a long way up, so getting reception in the north is not a problem.
