I have installed many HUs in the past but none of my past experiences have had a problem like this one. i am going to be installing a Blaupunkt Casablanca CD52 into a 1999 Grand Am GT. The trouble is that the car has a volume control as well as a seek control on the steering wheel. I want these to work with the Aftermarket HU but i dont know how to make them work. I was just wondering if anyone knew how to do this or what i need to do this and where i can get it at? Anything will help me. Thanks