I have a 2001 TL with navigation. I am looking to add a satellite radio system that will interface with the current radio / navigation system.

1) which is a better XM or Sirius?

2) Which systems will integrate and are good values?

3) How difficult is the installation?

Thanks!

 

wont mess with any thing. I prefer sirius (have/had) both. I think there is a adapter for the xm with the hu