Satellite Radio - This mount will put your SIRIUS receiver on a pedestal above your vehicle's cupholder. Standing about 5" tall the pedestal features an adjustable flywheel base that expands to fit varying cup holder opening. It however, will not work with adjustable type cup holder openings or those that are quite large such as the ones on the Full Size Chevy trucks. This pedestal does work with most vehicles however for some types of cars, the cup holder is not the best location in which to mount a device. Will not work with Starmate or Streamer GT