I mounted a XM onyx mount in my Quantum. It is wired into the 12volt system. I ran a short stereo cord from the mount into the dash and back out next to the Receiver. This works great. I didn't want to try running an outside antenna so I had a home antenna that I mounted up in the overhead window above the front sleeper. Now all I do when we leave town is grab the onyx off the patio and stick in the holder. Next step is to replace the crappy speakers.
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