I was working on my 280ce yesterday and ended up finding a cable not hooked up to anything that came from the fan speed switch. I did some research and saw that it goes to the door that lets fresh air in. What I want to know is where is this door because this cable doesn't seem to go anywhere, it doesn't have much of a reach. Also can I get to it or do I need to remove the dash.

Would you be able to post a photo of the cable that you're referencing?