How are your motor and transmision mounts? I noticed both of my cars became much quieter and smoother after replacing the mounts and they didn't look that bad. They are fairly cheap and it is not too bad of a job. As to your windows, have you tried cleaning the switches they tend to collect a lot of coffe and soda over the years. Also, If your fuses are over five years old just replace them all, they tend to fatigue and fail in ways that can't always be detected with a visual inspection.

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Bob D.
Parrish, FL
1 SDL, 1 D, 1 TD, 1 Mog