Ok, here is my first official project on my 2003 CL-S with Nav:

1. Install XM Commander radio in sunglass holder (in progress).
2. Install an 8 inch sub and amp keeping the factory headunit.
3. Make my nav screen operate as a DVD player as well (current group buy).

I am currently doing #1, but want to set everything up (wires/line out converter) while I am in there so #2 and #3 are a little easier. What exactly to I need for this?

I have the XM Commander and am waiting on the Biltzsafe interface so I can run my XM through the CD changer controls. What else do I need?

Does brand matter with the line out converter? Also, where do you typically mount this and the XM receiver?

I apoligize if this has been answered in previous threads, I did a search, but did not come up with exact answers. Thanks!