Ok, I have a 2007 Touring with Nav. I got a free ipod connector from a buddy. I have pulled the head unit, plugged it in and have it half back to gether but wanted to check that it worked before proceeding. Sure enough, the head unit wont switch inputs to allow it to run AND the ipod when plugged in shows the Mazda wings on the screen and says "ok to disconnect". Is there a sync process or something I need to do or will this just simply not work>?