Fuses, fuses, fuses. The fuses in these cars corrode, especially if they are the aluminum originals and the vehicle has been sitting a while. The fuses for the power windows and the top hydraulic pump are in the trunk on the upper right side. I know you checked them, but they can look OK and still not pass a current. The power top will not work unless the windows work. The roll bar won't work unless the power top works. Radio is not getting the keep alive voltage. The power top controller for this vintage 129 is notorious for getting confused and requiring a total reset. Lot's of information on that in previous posts. Use the search tool. If the car runs well, I wouldn't be too concerned about the electrics. But then, I'm an electrical engineer. BTW. Radio in this car is a 3 piece unit. Head unit in dash, actual radio receiver in trunk, and power amp under the right front seat. Radio gets a speed signal from VDO to raise and lower volume with vehicle speed. Some of these cars had a factory installed mobile phone integrated with the radio causing further issues.

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