My Sony Xplod CDX-MP30 Has Problems, Help!

I have my CDX-MP30 Sony Xplod in my 1989 Nissan 240SX. Yesterday it started going wacky. Whenever I turn off my car for more than a minute the memory goes away, it forgets all the stations I programmed and the clock. It's like it resets. Does anyone know what would be wrong? I took it out today and checked if the reset button was stuck or anything but it was fine. Could it be the wiring ? Please help!

easy solution, there is a wire on your deck that hooks to CONSTANT 12 volts that you have obviously hooked to a wire that is only powered when the ignition is on. I think the Sony const wire is the yellow one.

thanks man:)

it is a sony

sony really made me sad when they made audio stereo equipment it just isnt the same sony quality