The cruise control on my 94 LX 3.8 appears to be temperature sensitive. When the car has been parked in the Central Florida sun all day, and the cabin temperature exceeds 95 degrees, the cruise works perfectly. When the cabin temperature is cooler, the cruise will not work at all. Am I looking at a brake light switch problem, a clock spring issue or a steering wheel switch problem? Don't want to throw money at the problem, but I do want to fix the issue. The car went for about a year and was not driven very much. 68,000 miles on the clock.