I found this link on Dension's website, according to the Article this trick will work for TL with Nav, but I think it still disables the XM Radio.

http://www.logjamelectronics.com/snhond3navinst.html

 

Something else I found this morning.
http://www.ipodlounge.com/ipodnews_c...d=6108_0_7_0_C

Hot on the 2005 Macworld SF show floor, A-E

"Dension's MOST>Link and Screen>Link add in-car iPod playback to industry standard audio systems and vehicles equipped with visual navigation systems, respectively"

 

I saw this too, wonder if they are planning on coming out with anything for the TL. I emailed Dension Support, haven't heard back from them yet.

 

I think the OEM head units of our TL doesn't have an extra connector for any after-market connector. You'd have to either splice one of the connections (probably XM) or remove XM entirely.