2005 cadillac escalade window roll down

i wish to vent the windows with aux 1 and roll down with with aux 2. i keep hearing conflicting reports on whether you should use the DEI 529t or the 530t with GM vehicles. Which one should i be using? and the 530t has the one-touch auto up/down, how does that affect cars that already has this feature? also i've read the 530t instructions and have a question about the following with regard to a compustar CM6000: to vent the windows: press and release the aux channel... to roll the windows down: press and hold the aux channel... on the cm6000, the aux can be set to pulse, latch or time. will i still be able to vent with a press and roll down with a hold for 3 seconds? thanks "When the slugs penetrate you'll feel a burning sensation..." - Prodigy of Mobb Deep

Forget DEI Window mods Get Twindows, They work far better. 1-310-318-6680 is the companies phone number, call them directly.