I have a B20 that does not start when using the key. I can jump it to start, if warm, but the key does not crank the starter. I replaced it today w/an OEM switch (5-connector), and still no power to the starter. I suspect there is no power to the glow plugs as well, but not certain. I see no lights or gauge activity on the instrument panel at all, regardless of the key position. I replaced the starter and solenoid just prior to replacing the switch. I also checked the in-line fuse by the starter (the loop of wire). It appears to be fine, but to be sure I connected the two terminals directly and still no juice from the switch to starter. I have a repair manual coming, but it's not in yet. I believe there are more fuses in the wiring harness, but I'm not sure where they are, what they look like, or how to check them. Any help is appreciated! Thanks...