I installed my GMX 320 last night, and I must say, it wasn't as easy as it is claimed to install:
1) It is very hard to push all of the excess wires and connections from the Lockpick in the hole behind the Nav screen. It took me alot of time to fit everything correctly. I wish Coastaletech could have designed a system with less wiring and the akward way that the lockpick system is placed in behind the screen.
2) To use the feature to turn on the stock camera, you have to run a wire through the back of the dash, under the center console, and then to a connection under the passenger seat. Then you have to splice into an existing wire. I am pretty sure the system isn't "plug and play" like they claim it to be.
3) The connection for all of the lockpick wiring into the contol module for the lockpick isn't very good. It slipped out of the control module several times and I had to take everything apart again just to make this connection.
4) Also, the male/female connections from the stock screen to the new connectors of the lockpick make bad connections sometimes. I would put the screen back in, and the connections would move and lose connection to the speakers, XM, or the entire power to the radio system. I think they should get better connectors that don't slip out of place.
Don't get me wrong, I love this lockpick and everything works well, but I think they could have designed it a little bit better and they shouldn't label it as a simple "plug and play" system.
I've tried a few times to pry off the bezel trim but haven't even gotten it to budge. Anybody in Dallas want to make a quick $50??? 
