Pioneer AVID D1 Installed But Have Questions

[kacyk]

I always had (and favored) factory units, e.g. GM TNR's, INR's and Honda Nav but never had an aftermarket Nav. I must say this Pioneer is superior than anything else that I've owned. Address input is done completed quicker and program is very intuitive. This time around I am able to see the video right on my Nav screen (need E-Brake on though) and also have a backup cam (very cool, especially when viewed driving forward!).

Question:

The E-Brake needs to be engaged to operate the Nav & AV function. I did a google search and although there were instructions, they seem to conflict. I really don't want to "experiment" with my system. The D1 was installed in my '07 Yukon, anyone do this successfully and wish to comment?

Also, to get XM do I need another accessory?