ChargerCity Simple-Lock Air Vent Holder Mount for Sirius XM Onyx EZ EZR Plus Lynx StarMate Stratus 5 6 7 Roady Delphi Skiff Nexus & Helix Satellite Radio (Vehicle Dock is not Included) Compatible with Delphi Skiff, Sirius and XM Satellite Radios, as well as devices with Single T or AMPS patterns Expandable Cup holder base to fit both horizontal and vertical vent. Easy to install, Pull back to spring lever and inset into Air Vent 360 Rotation Ball joint adjusts to suit your viewing needs Compatible with Garmin ZUMO Factory 4 hole AMPs fitting Cradle (RAM MOUNT Compatible)