i got a 1991 cavalier and the cruise control don't work. I took out the servo, while i was doing that a red wire came undone and now i have no clue where it goes to. I've looked everywhere in the servo to find where it goes and still nothing.

if anyone knows how i can fix the cruise control please help.

P.S. where does that red wire go to?

first of all, you should see where that cable comes from.
if messing with your radio made your cruise controll stop working then it is probably a ground issue. does your radio make an annoying thud sound?
are dash lights on all the time like seat belt and brake?
if so then it's a ground issue.
more details will help me answer you better
also, what does the end of the wire look like?