are you using the black stick thing on the dash by the rev counter ? Push once to flick between a and b and hold to clear miles
my guess is you're trying to reset the miles by adjusting the brightness of the dash lights ? the buttons are misleading
Will have a look, door switch us prob a negative switch (normally are)
When I had my 350 I put led's in the footwells and had them switched with the interior lights using the loom in the A pillar
Could be wrong but on my 911 it was a micro switch in the door handle that sent a sinal for the window drop, the door switch just does the interior lights