6 cd changer question
 

I recently skimed through a chrysler parts catalog. I came across the 6 cd changer unit and the connector harness.
I have an 03 town & country that only has a single cd player.
My question is: will that connector harness plug into the back of my single cd player?
I'm thinking that you need the cd player that does not have a single cd slot. It would be nice if the changer did plug into the single player that is already installed. Just thought it would be a nice future upgrade but probably won't change the head unit just for the changer.
Thanks in advance.
Bill