http://www.logjamelectronics.com/piehon03pcpod.html

Anyone know if this will support XM at the same time?

 

Don't know whether it'll support XM, but I did notice this statement:


Works with the following non-navigation equipped vehicles with or without the 6 disc in-dash CD changer

 

This device has been discussed here before. I don't recall any discussion of XM compatibility, but I think it won't interfere with it. Because it won't work with navi cars, I'm guessing it uses the navi audio ports and leaves the XM alone.