Jim, I was just looking at your thread from awhile back regarding your Wireless Control Module. Did you ever find / fix the problem ? I am having intermittent issues with my WCM and I suspect a bad ground or something similar. It starts with a TPM warning and then my remote key functions won't work, and even the HomeLink button for my garage door ! I am able to "reboot" the WCM by pulling the 14 fuse in the trunk fuse box, and all is well for a while. Just curious if you ever got it resolved. I have a 2006 300C.