engatwork - Thanks for the reply. ATF it will be...
Once I know that linkage is as smooth as it should be, then I will test the cruise again. If that did not help, then I'll start checking out the amplifyer and go through the diagnostics.
On the rear light bulb issue with the cruise control - that should only affect the cruise with lights on, or with the brake pedal depressed, right? After all, with the lights off, the circuit for the bulbs is open.
1989 560 SEL (black/black)
2001 Audi TT Roadster (silver/grey)