See the Sirius Mobile Antenna Dot Micro as an alternative to this antenna.
The SIRIUS Dot Micro Antenna is designed to be mounted on the roof or trunk of your vehicle. For best possible reception, we recommend that the antenna is installed according to instructions from the manufacturer. This antenna comes packed in a plastic clamshell.
This antenna works with all single input SIRIUS receivers. Single input SIRIUS Satellite Radios have one Antenna Jack, vs. some older models which have two inputs.
Compatible with ALL single-input dock or radio antenna connections. Below photos show a single-input antenna connection.

Antenna Specifications:
SHAPE: Rounded Puck
COLOR: Siver and Black
DIMENSIONS: 2.22 in. in diameter x 0.49 in. in height
WEIGHT: 3.4 oz.
CABLE LENGTH/TYPE: 21 ft., ultra low loss
ANTENA CONNECTOR: SMB (over molded, right angle)
MOUNTING: Magnetic
COVER: Impact-resistant polycarbonate/ ABS blend
Q: What is the difference between the Dot Micro antenna the the Square Car Antenna?
A: The real differences between the original SIRIUS Car Antennas and the newer Dot Micro Antennas are the shape and the gain. The Dot Micro is round and has a much lower profile. It also has the highest gain of any Sirius Car Antenna.
Q: Why did my old SIRIUS antenna break?
A: Many times SIRIUS antenna's cables will break at the end points. This is especially true if you move your antenna from vehicle to vehicle. Repeatedly bending the cable will eventually lead to breaks in the wire. We recommend that you have separate antenna for each of your vehicles.
Q: Will the SIRIUS Mobile Dot Micro Antenna work with my receiver?
A: The SIRIUS Mobile Dot Micro Antenna will work with most SIRIUS receivers. It will not work with receivers that use the older style Fakra connectors.