Hello: Am thinking of getting satellite radio XM as a gift for a person with a new 2004 Accord LX 6 cyl. Apparently it does not come with an XM capable radio (only the leather packages have it) so will have to do it the hard way, I guess. a. Does the "standard" 6 CD radio that came installed with the car have an aux. jack to accept the XM tuner output, or must one use the small fm transmitter that you can purchase for it ? b. Hate to have to install the antenna on the exterior of the car. The salesman said that it works fine placing it on the dashboard, as the glass is so angled, it has a good sky view. Also said it work if you place it on the rear inside shelf. Are both of these statements true ? Or, is it "substantially" better on the roof ? c. Not too sure what else to ask. Are you folks happy with XM ? Works well ? Worth it, in your opinion ? Any caveats, etc. ? Thanks, Bob