The RCA jacks on the right are the new aux inputs (left and right). The one on the left is the control line. When it's pulled high then the radio switches to aux in (and makes a nasty crunch sound, unfortunately).
Description: The RCA jacks on the right are the new aux inputs (left and right). The one on the left is the control line. When it's pulled high then the radio switches to aux in (and makes a nasty crunch sound, unfortunately).