Windows stoped working then car died, no start no power to locks seat fuel pump

It tested good...

Have you tried a jump start? .. Assume nothing!!

Yes...then I realized the fuel pump was not kicking on.

Did the engine at least 'crank over' while jumper cables were hooked up? .. Windows and other accessories start working again also? .. 'IF' jumper cables made all that stuff start working again .. Strongly suspect alternator is not charging!

Ok, update, I came across this plug looking thing. Under the driver side kick panel, it had 6 wires that went to it. After pulling the case off it was all corroded so I took it apart cleaned all the corrosion off put it back together start of the car right up if I can figure out how to show pictures I will so anyone who ever else stumbles across his problem maybe you can help them thank you for your responses and all of your input is greatly appreciated...

What does it look like