Are you not using the car mount for your truck? And, how do you get the XM jacked into your truck sound? Do you use the cassette adapter? ? spyder
Ah, another picture to be forthcoming. I am not using the " bean bag mount"
My GPS has available 3 separate mounts, a cradle with a locking tab, a cradle without a lock tab and the bean bag which is a swivel and tilt mount. The plain cradles could be used on a supplied gimbal bracket.
I have an adapter, goes in line between the the radio and the XM box under the dash ( I don't use the factory XM).
This "breakout box" has a dedicated iPod connector and an additional "line in" RCA connector.
It is made by P.E.I. if I recall.
You can get them for most factory radios with or without a factory XM, except for Harley radios (I already inquired).