1995 e300d radio/cd question
 

i recently picked up a 99 e320 w/ a factory 6 disc changer. the head unit looks identical to the one in my 95 e300d that has no cd changer. the changer in the 99 looks similar to the one in my old 95 300d. \
in short i would like to take the cd changer from the 99 and put it in the 95...

question: is there a wire in the trunk of the 95 eagerly awaiting my connecting the cd changer from the 99 to it or a wire in the 99 that i can plug in the back of the 95 HU for the cd changer or is there going to be way more to it?

thanks
gh