I have XM radio, the cassette car adapter kit.
I run the antana under the plastic dash cover that I have and have it sitting on the dash next to the windshield between the wiper and the windshield edge on the passenger side.
I had the antenna wired to be outside, but it seriously scratched my paint!!
I have the casette and power plug wires running under the dash and behind the center consol so that you only see a small bit of wire comming from under the dash to the cigarette lighter and from under the dash to the radio.
Then........I have XM radio sitting on the floor consol in front of the shifter. I have the cords running from behind the center consol, under the floor mats toward the seats and they plug into the XM radio from there.
Sorry, I dont have my camera with me today. But i'll get you pictures posted tomorow.