2008 Dodge Charger Uconnect.

[CharlietheCharger]

I have a 2008 Charger. Up until recently the uconnect in my car worked fine.  Then my neighbor the front left corner of my car and since that happened my uconnect doesn't work. I can get calls and I can hear the person that is calling me just fine but they can't hear me. Yesterday I got my car back from the body shop to fix the front bumper and I tried my uconnect and it worked just fine but it no longer works. I was wondering if anyone knew what type of problem that would be, when I went to the place that I bought my car at they told me it could be in the radio or a loose wire or a bad speaker.  Has anyone else had this problem?