More data will be needed to give specific help, but is your phone on the Uconnect list? http://www.chrysler.com/crossbrand/u...interface.html
Use the getting started link at the top of the page and don't be concerned that it is listing only Chrysler models on the opening page. The same Bluetooth module is used in brands.
The Bluetooth module that Chrysler uses seems a bit more particular than some. For example, my iPhone had all sorts of trouble with the version 2.x phone firmware versions, but the current iPhone version 3.x works flawlessly.
What phone are you trying to use?