Radio and windows

The thing about intermittent issues, you have to test when the problem is ongoing. So, check applicable fuses and circuit breaker, use a voltage tester, even if the fuse is good, if no voltage on the circuit, the circuit is dead.

The power windows receive ignition feed as does part of the radio. The circuit goes hot when you turn on the key. I can't say the ignition switch is faulty, it could be the wiring circuit to or from the ignition switch. You need to do some testing.

Sounds good.