Tom,
I talked to an audio/stereo/XM Radio tech near my house about Terk's new adapter for XM that might work with the 2005 Nav system...part XMDRDS100. It will interface with the NAV display using the RDS signal. The problem is no one seems to have it in stock yet. What do you think?
link:
http://www.audiovox.com/webapp/wcs/s...4946&langId=-1
Let me know...
Barry