You're in big trouble now... Throwing out factory cupholders is grounds for a kick in the nuts.
Do the power window switches have auto up as well as auto down? If you don't know what I mean, auto down is when you push the button and the window goes down all by itself instead of you having to hold the button. I am wondering if the GX81 had auto up as well.
Do you have a digi cam? Could you post a general pic of what you have? That would help me remember the stuff I know I wanted.