I am trying to hook up a external xm radio attachment but i dont see any audio port...really?

 

Myjag, depending on the radio that you have, you may or may not have the ports. The SAT/NAV radio has a plug for accessories. The basic cassette player does not.

 

If you want to spend the cash, and if you can find one, get the ACM. It allows you to play your iPod, plug in any accessories via RCA jacks (satellite?) and has a USB input to play music from a USB stick.
Unfortunately due to the fiber optic system Jags have there is no splicing. You have to buy the Jag parts.
Cost for a new ACM, and they are still around for the X Type, is around $430ish. Relatively easy install also. All plug-and-play. And there is updated software around so the latest iPods will work.
Good luck.