Vent Vehicle Mount Cradle Designed for Sirius StarMate ST2 - Unique Auto Car Holder Clips into Air Vents. A vent mounted cradle base for use with the Sirius StarMate ST2 device. Holder is designed to adjust to accommodate the exact required dimensions (48.1 x 128.8 x 19.2 mm). Gomadic Holder is highly adjustable with sliding/rotating mechanisms on side and bottom ensuring easy access to all Sirius StarMate ST2 buttons and controls. Spring loaded vent clips designed to accommodate both horizontal and vertical oriented air vent systems. Integrated rotational joint on spring loaded vent clips provide support for both landscape and portrait viewing modes. Heavy Duty foam pads (0.5 inch thick) line grips on side of holder. Made with high density construction compress to secure device when in use.