Hi, I had a hands free kit installed for my BlackBerry and ever since then when I try to use audio, sat nav etc. etc. an error message appears on the screen as follows: FOLLOWING AN INTERNAL VEHICLE PROBLEM THE UNIT CANNOT WORK CORRECTLY You then get a 10 second burst of radio and then it shuts down. Anyone out there had similar issues? Be interested in any advice. I suspect when the installer disconnected the power to wire it all in something went amiss... Burt