I just installed the OEM satellite sirius satellite radio. The install was very simple once you strip the trunk of panels and such.

I mounted the antenna on the rear strut tower on the black plastic(no problem with signal, it even works in my garage!). It keeps the clean lines of the roof better. I ordered all of the parts from Grubbs infiniti in texas.

I was surprised that my 05 performance (canadian model) was already pre wired for the satellite radio.

Jeremy