I have a 92 gmc truck. my radio memory wire is hooked up but it will not...

[D]

...remember when I turn my truck off? My fuses are good.

[LarryE]

Is it hooked up to a wire that's always hot? If not it needs to be.

[Charlie]

Thats because of its age, like some of us, forget things ... Check fuse and hot source... Better yet, replace radio with a cheap tablet or a cheap car radio equipped with usb and SD card slot for your nano or smart phone ,then just connect wirings for the stock speakers like what I did on mine. Remove or disable equalizer unit and install a container for stuffs. Be creative.