Sorry for the question....if it was answered already I apologize...I couldn't find specific info anywhere...I have a 2003 gmc yukon. this truck comes equipped with a bose audio system, with steering wheel controls. How can I use my existing steering contols to control the volume, etc... on programs such as mediacar. Finally, my bose system also comes equipped with xm radio, but i believe it is through tthe car's computer itself. how can I integrate this existing XM radio with my new carputer? Is there a PAC interface or something that will allow me to connect it directly to my carputer, or do I need to buy all new XM equipment, i.e. tuner, etc...? And what software allows me to run Xm? I believe I read that frodoplayer allows you to do this, but how exactly does it work? Sorry for all the questions, but I just want to make sure I cover all angles before I go buying unnecessary accessories. I appreciate any help in this matter!!!!