I thought I was clear with my response. I have both the Aux input and
a 6 disc player. The connection process for the aux input is as outlined
in the link I provided. I had the CD player already installed before installing
the Aux input. Either the CD player, the cassette, or the Aux input can
be chosen right from the head unit. Of course the Aux input does not
display any information about what is being played. Hope this helps