AudioVox SRB-MM Truck Mirror Mount Bracket The Terk SRBMM antenna bracket is a perfect accessory for your magnetic mount antennas. Enjoy either brand of your magnetic base satellite receivers, Sirius or XM. SRBMM's chrome plated weatherproof design has made it a perfect antenna mount for outside use. It also features a 3-foot cable protector and adhesive pad for ease of installation. You don't need any tool to install antenna using SRBMM. SRBMM features a 3-foot cable protector and adhesive pad for ease of installation. It clamps easily to a mirror support bar that is up to 0.75-Inch diameter. You don't need any tool to install antenna using SRBMM. Compatible with SIRIUS and XM magnetic mount antennas Comes with 3' cable protector and adhesive pad for semi-permanent antenna installation, no tools needed Chrome plated weatherproof design Fits 1/2" - 3/4" diameter side mirror supports Includes 3 cable protectors and adhesive pad for semi permanent antenna installation