This is the big truck length mounting arm for mounting your Sirius Satellite Radio in your car.  it is.

This mount uses the same flexible metal rod but instead of using the car seat bolt, uses an extremely strong suction cup that attaches to your windshield.  All you do is press the suction cup to the windshield then press down on the air lock and it's permanent until you press the the air lock back up then it comes right off.  The suction on this pedestal is very strong and has a suggested weight capacity of up to 20 lbs. This pedestal installs without tools and can easily be transferred from vehicle to vehicle.

Fits many models including:  Sportster, Sportster Replate, Sportster 3, Sportster 4, Sportster 5, Sportster 6, Starmate 3, Starmate 4, Starmate 5, Starmate 6, StarMate 7, Stratus, Stratus 4, Stratus 5, Stratus 6, Stratus 7, Stratus 8, Edge, S50, Stiletto, Stiletto 10, Stiletto 100, Audiovox PNP1, Audiovox PNP2, Audiovox PNP3, Orbiter, Audiovox XCS9, Audiovox Xpress EZ, Audiovox Xpress R, Audiovox Xpress RC, CommanderMT, Delphi Myfi, Delphi Roady, Delphi Roady XT, Delphi Roady2, Delphi Skyfi, Delphi Skyfi2, Delphi Skyfi3, Mirge, onyX, Pioneer Inno, Pioneer Inno2, Samsung Helix, Samsung Nexus, Sportscaster, XMP3, XMP3i, Xpress EZ, XpressR, XpressRC, XpressRCi