I had a similar problem with mine. Got it home and went to start it, and it was dead, no starter solenoid click, no nothing. Pulled out the GM service manuals and went through it. I found that someone had put in a 'security alarm system' at some stage. The alarm system had a relay that disconnected the start relay. That relay was poked. So I just bypassed it and never had a problem again. You do need a full set of service manuals though to work through.
Bummer about the ex.
But just changing the subject - I'll take the 930. Thanks
