Radio mystery, can you solve it?

My radio just shut off as well as the DVD player. And it may be just a coencidence but the right rear window does not work either. I checked the fuse number 15 and all of the others after that one appeared to be ok. I put the fuse back in and the radio went back on, tah dah..., for 10 seconds and then shut off. I tried it again, I removed the fuse, it looks good and then replace it. The radio went on again for about 10 seconds and shut off. Being a firm believer in the theory that repeated behaviors will net the same results, I tried it again five more times, with you guessed it the same results. Actually what I was trying to do was beat the clock and check to see if the back window would go down. I'm a little to slow at this age.

Has anyone had a similar problem? Thanks, Frank
PS new to this site, you guys have a great forum.