RelentlessOne

I want to hook both my ipod and xm receiver to my factory head unit but am not sure which interface allows this. I did some searching but from what I am reading the blitzsafe only has an ipod interface, along with the neo. So question 1 is, is there a device that will allow me to hook up both? and question 2 is will I keep my steering wheel controls with the blitzsafe? (if I have to choose my ipod without xm) Thanks in advance.