I've tried poking around for the answer to this, but didn't come up with much. Maybe someone has the answer or can point me in the right direction:

I purchased a 2008 WRX pre-wired for satellite radio. I think that $400 for a Sirius tuner module is a little ridiculous, but whatever. I have a Sportster I can use, but I hate the magnetic antenna and all the wiring that goes with it.

The question is - is there any way to connect my Sportster to the factory antenna? I'm sure there is, but any idea of how difficult it would be?

Thanks a lot.