Kevin, I don't know much about the starter motor question, but on the drivers door one switch does the lights as you sugested and the second should trigger the door open warning buzzer. The buzzer is nasty sound (IMO) and on some cars, depending how good the switches are and the door alignment is, they buzz when you go around courners, I personally disconected mine, that maybe what the previouse owner has done to yours. The buzzer is located under the dash board above the drivers side footwell, happy hunting, looks like a black matchbox sized object and is mounted to the same peice of metal as the indicator flasher unit and the windscreen wiper control thingy'm'bob. This is the same buzzer that buzzes when the drivers seat belt is not clicked in. James