Sunroof Control Via Alarm

[deadringer]

I'm trying to figure out how to integrate a DEI 530t or 529t with the factory sunroof in my 05 Yukon Denali. Install manual for the 530t is here: http://www.p71interceptor.com/windowmodule...ls/dei530t.html and for the 529t is http://tinyurl.com/dei529t

 

After looking at the factory diagrams for the sunroof, I'm starting to believe that what I"m trying to do isn't possible. Diagram here: http://i34.tinypic.com/2ptxr1i.jpg

 

Since the sunroof as one switch for both the slide and tilt function and there's no sensor for the tilt position - there's no way for the 530t or the 529t to know what state the sunroof is in (open, closed, or tilted) to know what do to close it. For example - its already closed, it will tilt when the alarm is armed.

 

Am I correct that there's no limit switch for the tilt? If there is, it doesn't seem to be documented in the diagrams.

 

Has anyone successfully installed a 530t or 529t to operate the sunroof?

 

Any advice or feedback would be helpful.