there is a control module which powers both. A temp way to get over the hump is to hold the driver window up/down button opposite of window position when starting.
fuel gauge not working and power windows and radio.2004 mercury mountaineer.
You probably melted a fusable link . Check by the battery or on the firewall . It will be a wire with a melted spot by where it bolts to the power supply
That sounds like a bad fuse...
Blown fuse, broken wire, failed switch,
Your windows and radio both quit working at the same time because you blew a fuse.
check fuse. they are all conected.
check the fuses
Check all the fuses.. My power locks, radio, dome lights werent working. I looked at the "Radio-CLock" fuse it was good. I checked the others and and "Aux" fuse or seomthing was bad.
Have you checked the relays?
Change the mlps {aka} the nuetral safety switch or the selector switch on the transmission and that will fix the radio problem and the power steering problem it may have also.
no blown fuses. and I have changed most all of the relays
The wiring harness can be loose or coming loose. There could also be parts inside the actual radio that aren't working. You could buy a new one as they aren't that expensive.