Ok, so my endeavor this morning was to get this thing working on a Mac Mini.
So I did the hack 8pin din->rs232 and then got a random Serial->USB adapter.
What a nightmare, could not find the drivers, etc. Finally found them, company called Prolific.
Anyways, using MacXM (macxm.sourceforge.net) I am now able to successfully use XM on my Mini YAY....
I'll post some more details, links, and pics later..... been working on this over 12 hours.