I recently picked up a 2005 Chevy silverado 1500 4wd and it does amazing but randomly the windows and radio quit working sometimes the A/C too. Ive checked a lot of my grounds, new ignition switch, all fuses check out good. I would really appreciate some pointers, was hoping maybe somebody has experienced this before with their vehicle and got it fixed.

When these randomly quit working, what causes them to work again?

How many miles on it?

What region does it live in?

What region did it live in before you picked it up?

It has 137,XXX miles. It has lived in north flordia its whole life. It has been taken pretty good care of, it was an elderly couples truck, they got it new I believe.

When these randomly quit working, what causes them to work again?