Originally Posted by PSUrivie
I have a Kenwood headunit with the PAC module for keep the SYNC capability. My message center still works properly. I may be the module you guys are using.
Most people do not add the additional module though. Simply get the aftermarket headunit, dashkit, and the plug in harness to connect the wires from the new radio to so that they don't splice the factory wires. Many of us do not have sync so it comes down to do we want to pay for the expensive module used for sync in order to only keep the thermometer in the message center because we do not have the other functions that come with sync.