I am sure you can get it at the dealer, but your gonna have a ball on the computer with the parts guy trying to figure out which one it is. Not to mention your gonna need that tool that presses wires into connectors. Id say try to find one in a junk yard, and "old school wire" the connector into your wiring
If all else fails, you can always go to your Radio Shack or what have you, get a couple quick disconnects for wires, and add them in there.
Keep in mind, old school wiring will give you the best sound quality if properly soldered, over ANY connector. It will also last much longer, but be a PITA if you need to remove a lot. I believe my sound pods have connectors at the pods and thats it, but I am not possitive, and do not own a bar.
just my .02