CJDraper

I recently installed an Avic-x910bt into a 2010 challenger, basic sound system.. Everything works great except when I try to make a phone call, no sound comes through the speakers.. This problem also exists with the nav voice. I used the pac harness c2rchy4. If anyone has any suggestions on this problem I would appreciate it. I have tried a different head unit and different phones and the problem still exists. I believe it may be in the vehicle wiring side..