using steering wheel radio controls for other things

so im getting my gto back in a couple days. I had full exhaust and some other things installed along with a tune and exhaust cutouts. they're installing the qtp remote kit.

so my situation. the remote has 2 buttons. 1 that you hold for open (hold it until you like the sound or until its full open) and the other is to close it (hold until you like the sound or until its fully closed). I don't wanna carry a remote around with me since for some reason GM decided to make our keys the size of something you would play with as a toddler, and I don't want to just leave in the car and hafta look for it when I need it. so I think I might have a solution....with your help that is.

my question. since my steering controls don't work for the radio anymore since I installed the aftermarket radio, I figured id use the volume buttons. I mean what better way to make your car louder than by using the volume up button. does anyone know of or have a diagram of the steering wheel controls so I know what wires I would want to use??

I looked up online something similar. people were hooking up button switches to garage door openers. basically the most forward I found was a guy that found the 2 connection points inside the remote, soldered 2 wires to the connection and just ran it to a 2 pole switch. so it was kind of a remote switch. I want to do the same I guess. add 2 wires to each button (4 in total) and basically just run them to the respective wires for the volume controls.

any help