Window roll up, rear defrost help

Hello all,

I have a two part question, on a 2002 honda civic. The alarm / rs unit i'm installing has a feature that when u remote start car, rear defrost will come on. I've located the rear defrost switch wire, tested it, hooked up just like directions say (using relay), but the button light doesn't come on. When i tested the wire, with the car off, it reads 0.00 on the meter, with the car started it reads 12. 86 v and then when i turn on the rear defrost button, it reads 36. ? Is this wire positive or negitive ?

Another feature is a programmable aux output. You can program the output up to a 10 sec pulse (for window roll up). My diagram for the window wires have specific wires for each window ( LF, RF .... up , down) but they all say (A) polarity, the picture diagram i have shows a ( + ) on the up and down wires. Does this mean they are both positive ?

Also, can i hook up the drivers side and passenger side up on the same lead using diodes  ??

Thanks, if anyone can help ( l love this website)

Thanks, ratman

I typed that last number incorrectly, it should be: when car is off, it reads 0, when car is on it reads 12v and when i hit the defrost button it reads 33.0 mV

what is mV ?