Thanks for that, I know the one you're talking about. My a/c evaporator and tx valve were taken out a couple of weeks ago, and I could see up in there. Both the metal cruise control box and the black plastic boxes were there.
The bolt holding the cruise control to a cross member was half out (not loose so it may never have been tightened. I fixed that last night.
The annoying thing is the car is in having the new tx valve and evaporator put in right now, so I'll have to work out how to take the soft dash cover off to get at the dimmer box.

thanks again.

Bruce