The Sirius antenna has to be out with nothing blocking it. Putting it near the radio antenna works but not because its next to the other antenna. If you have a metal rack that would be the best place for it.
What if I hard wire the antenna to the antenna already on the bike??
Lamonster Bumpskid
BajaRon Swaybar
Tricled LED Backup light
Tricled LED Headlight
Lordco LED Signal Light
Jurock Windshield
Sirius XM Satellite Radio