Car is a '98 c230.

I've been searching for days and can't find a confirmed solution to this issue. I've tried disconnecting the battery, and re-syncing the windows with no luck. I did confirm all windows work when using the key in the door. The lights on the window switches come on, and the remote trunk button lights red when the trunk is opened, but won't pop the trunk. The power mirrors also stopped working. Sunroof works fine, as do the power seats. I checked all the fuses the manual calls out under the hood and in the trunk and they look fine.

Has anyone else solved this issue without going to the dealer (common suggestion)? I'm a DIY guy and want to fix this myself.