I just installed a Pioneer 3300BT in my GXP with monsoon without onstar. I love the head unit. It works flawlessly with my iphone and the Pandora app built into the radio is awesome. I installed it with the Pac c2r-gm11 interface and the axxess aswc steering wheel control adapter. Also needed an antenna adapter and a double din mounting kit. optional parking brake spoof is good too so I can dial calls from the phone book in the bluetooth part of the head unit. Also the caller id shows up and if they're in your phone book the names come up as well on the touchscreen.
Very easy to install. everything is color coded and you can wire it all up before you install it in the car. Then you only have to plug in two connectors to the factory harness and the antenna and your done.
The ASWC recognized the radio and car but programmed the buttons incorrectly but after manually reprogramming the ASWC everything works great.
My only complaint is that the pac c2r-gm11 interface is very quiet for the turn signals. I can hear them when the radio is off but when driving with the radio on, you cannot hear the click, click of the signal. The seat belt chime is audible though...go figure.
I should have bought the rear camera but I guess that will be a project for next month.
I'll post pics of mine soon.
I didn't do the rear camera (and not really sure I'm interested in that). I did get both the HD Radio and the Nav (avic-u220).
All the complaints about the NAV add-on are correct. I did the 12Million free POI update and it worked flawlessly, but it still feels like there are no POIs there at all. The POIs are really very useless with thing.
And the screen resolution with the NAV isn't that good either.
I knew going in that it'd be better to get a Garmin (quality wise) but to me the built-in feature was more important. I didn't want to have something else plugged into my cigarette lighter and have something sticking on my windshield.
So while the NAV does kinda suck, I'm still glad I've got it. If I ever feel like I'm getting lost, I've got Navigon on my iPhone and will use that. And I can use the iPhone to find stuff and then enter it on the Pioneer. Again, shortcomings - yes, but I knew that going in and I like the cleaner look of everything integrated.
I'm still learning how to use this. I'm LOVING the Pandora integration, especially now that I know how to skip songs. I've also paid for Pandora One so no more commercials.
I did not get the XM or Sirius add-on, but there's only a few stations I really liked on XM and I can mimic them easily with Pandora. I don't feel like I'm missing anything, and Pandora One is a lot cheaper, sounds just as good, and has (to me anyway) a much better selection.
I haven't watched any videos yet (don't worry, I won't when I'm driving) but I do want to test that feature out one of these days. My son may want to watch videos occasionally so I'll have to test that soon.
I've still got a minor volume issue that I'll get fixed soon. But even with that, I can say I'm really satisfied with the upgrade.
This GXP just keeps getting better and better!