05-31-08, 03:02 PM Howdy. I'm a new member, picked up a 2003 STS
this month. It has the Bose system in it which I understand is
XM ready. (you know the message you get when you press the PTY
button). I've been wading through the mass of posts on this
subect for the last few days and am more confused than ever. Can
you help me with clearing this up so I can understand what I
need to do to add XM? Can a smiple harness adapter be made
rather than the intrusive wiring procedure outlined in the
sticky about 2002 wiring diagram? This is a Canadian car if that
makes any different. Also, I see from one of your posts that you
do ready made Nav radios for plug'nplay. How much do you charge
for one of these and could XM installed be an option? Thanks for
any help with this. Doug Smith  05-31-08, 03:18 PM XM can be
added via the sticky instructions to both non nav radios and nav
radios 02+ yes i can make a stock nav plug and play for you but
contact me at cadillac1997etc@yahoo.com about that...