I was reconnecting a subwoofer that had been installed in the back of my Saab when I accidentally shorted out the power cable to it. I didn't think it was live with the car off, but apparently that wasn't the case. Anyway, after that I go to start the car and although everything powers up in the accessory position, turn the key beyond that and it all goes dead and the car won't turn over at all. I've inspected every fuse I can find, the radio fuse looked like it had gotten hot, but not blown, and the radio powers up fine. I've disconnected the subwoofer from the battery now but I'm not sure where else to look to find the problem, any ideas?