Electrical problem has me stumped

[rivcokid]

I get 6 volts measured at the battery bolt on the starter, and at the other bolt across the fuse leading to the box. That is, no matter what I put the tester on, I get 6 volts on the starter, but with the ignition switch in the off position. If it is in the on position, I get 0 at the starter.

No sound at all, although it did crank one time (out of probably 50 times that I've tried in hte past 2 days). The one time it cranked was definitely a freak occurrence.

There is no sound at all when I try to start using the starter button - no moan, no groan, no crank - it's like the battery isn't even in the car. That said - there was that ONE time that it did, but that was it. I've not been able to replicate it at all - just dead silence.