I have the KE83zbm (Pioneer) Radio unit and got a Pioneer CDX-M91 changer from a yard. I need a connector, both are the round style, to get me hooked up. Will the head control it? I checked the archives and there is no direct relationship between the two listed. I apologize my previous post said I had the CDX-M30 which I did not.
I'm not sure of the differences between the M91 and the M30, but I do know that the M30 will work just fine with the Ke83 head unit. You will need the 13 pin cable to do the communicating.
Hope it works for you,
Jr