tsf9810292

I currently own a 2005 4Runner with factory Navigation. I am contemplating purchasing the Avic-F90BT. One of my main questions is, is it possible to hook my factory camera into the unit, or do I need to buy the Pioneer camera module? Also to get steering wheel controls to work, is the PAC SWI-X pretty much the best way to go? And 3rdly, is it possible to wire in my factory GPS Antenna? Any insight on any of these questions would be greatly appreciated. Thanks!! -Sean