I have a 2008 E150 and the gauges are not working, the radio nor the power windows. What could be wrong?

SOURCE: auxilary power, electric windows, cigarette lighter and radio not working

Since all fuses are okay, I would start my trace from the fuse box and pick the easiest wire to trace which would probably be the lighter or aux. Check for any breaks in the line or any lose connections. It seems like a harness may be disconnected or cut.

SOURCE: brake and turn signal lights stopped working on my 1996 Ford E150

You might have cut a wire or it could have broken or disconnected. Try tracing the wiring where you hooked up the trailer you may find one broken or disconnected.

SOURCE: my car radio stopped working

It takes a nano second to ruin today's electronics. I'd check the fuse for the radio before hitting tha panic button. You may be lucky and only blew the fuse If you are prone to leaving stuff on, I suggest at least once a month you should put your battery on a charger...The alternator can never completely charge a battery...it's designed to maintain the state of charge...not re-charge. This shortens battery life and overworks the alternator. Hope it's only a fuse and if it is a radio, be glad you didn't do more...I've seen everything including the computer get fried!!

SOURCE: Lost all electrical power while driving?

Sounds like a poor connection from either the positive or ground from the battery. Check connections at the battery, follow the cables to see if any other connections are loose.

SOURCE: my gauges don't work , no interior lights no power windows

I had the same problem with my 2003 Ford Explorer. I disconnected the battery, which give the relays a chance to reset.
Clean battery termals reconnect and all good.