Depends on your music tastes, look at the formats and see which offers you
the best line up for what you like to listen too and go with that.  Also,
before you buy, decide if you want to use it ONLY in your car/truck or also
at home.  This will make a difference in what products you buy.  I.E the XM
Commander is an in car ONLY product, so if you want to use it at home, you
need to go with something like the SkiFi 2.

Larry

I have Sirius and I have a friend that has XM.  There isn't a huge
difference between them that I can tell.  I like Sirius because it is
integrated with my factory stereo.  But if it were integrated with XM,
I'd like it just as much I suspect.

Craig C.

I have a Roady2 and use it in the truck AND the office. In major cities (Las
Vegas, Nv in my case) XM has ground repeaters to boost the signal. With
CAREFULL positioning of the antenna I get good XM in concrete and rebar
office building with many computers and florcent lights I have almost no am
or fm reception. I love the lineup, just wish they would carry Rush Limbagh.

P a u l s

l v d a t a a t N O S P A M l v c m d o t c o m

For my tastes...Sirius has alot more Rock.

Thanks Guys, I decided to go with Sirius. Works flawless I live back in the
woods, and even going down roads with almost 100% tree cover over head it
finds the signal. The nearest repeater is more than 75 miles away in
Indianapolis so all I get out here is just from the satellites. For now I'm
using the new Kenwood Here2Everywhere. The blue screen looks cool also, and
the built in FM transmitter is great it works well over 100ft.