I had some time this Saturday and installed my XM tuner, no wire splitting or cutting, and for the time being a wireless FM modulator and I must say it works great!
I do have some experience on satellite antenna installs and this one works just as good, (here in Missouri anyway)

 

Looks good. I've been thinking about getting satellite radio.
How much for the unit and what about charges per month?

 

I have 3 XM subscriptions so, on the "family plan" its a lot cheaper them 9.95
(About 6.95) a month extra...
You can get the unit now for about 60 to 70 $ but you need to shell out an additional 50 $ for the car kit...
After 50 miles no dropouts, (exempt underpasses and gas stations)
I have on order an auto switch unit so I do not need to press power when I start the vehicle...