Blown amp?

I just recently did some rewiring in my car. Initially I had two amps installed, one 4 channel that powered 4 6x9's, two in the front two in the rear. And the other amp was a 5 channel for my 3 subs. Well, first, the 6x9's amp blew, then one of my subs blew. so I had the 5 channel running 2 subs and 3 6x9s. Then another 6x9 blew. (old system, all items were bought in 98-99, yeah, it's time for an upgrade) So I was down to the 5 channel amp pushing 2 6x9's and 2 subs. I rewired everything so I could take out all the old unused unworking speakers, amp and wiring, and had everything hooked up, music playing, started going down the road with the music playing, turned it up and all of a sudden the music cut out and all the speakers are outputting now is a strong "bump" of the bass about every 5-10 seconds followed by silence in between. What did I do, I'm no electronics genius!?!?

you may have wired it incorrectly for the speakers you have left. Sounds like the amp power supply is blown.