sunroof closing, my car's switch turns off auto

Yes it is reverse polarity. Your switch needs YOU to activate it, not ground. The switch has nothing to do with 12v. The switch completes the path for the coil to ground which the other side of the coil is 12v.

The problem with this setup is that if you can't tap into the circuit between the circuit break and motor, you won't be able to shut off the latching relay. Your only solution is to get a sunroof module. Now if you could, then my post above would work.

sh*t! i figured it out... here's the diagram

85- negative trigger from alarm + wire to 87 + sunroof close switch

86 - 12V from sunroof relay (ONLY when sunroof closes it switches on, and switches off when sunroof is fully closed), also diode to prevent reverse current since the 12v from relay acts as ground due to rev. pol wiring.

87 - wire to 85

30 - ground

there it is... it's also considered a one touch roll back thanks to the oem honda circuit breaker to turn off the current when it's fully closed.... this applies to all hondas

also you gotta run a constant 12v to power the relay or use another relay to power up the relay.  also make sure you got diodes

Your diagram can't apply for all hondas. Even though the circuit breaker shuts off, the factory relay and latching relay will still be on and eventually drain the battery. If you have a module ( which it seem like you have) that senses current and shuts off automatically then your diagram would work.

P.S. If you wired the relay like my first post then you would not need a diode.