CD stacker on stock head unit???

Hi,

i was wonderning wheather you guys could help

i have a 1998 Civic Hatch
I have done nothing with the standard sterio
it has tape, am/fm
It also has a CD button (for a CD stacker)
does this mean if i buy a CD stacker it can be linked up to the head unit. with no extra devices?

i was thinking like a Pioneer cd stacker or something.

I really hope this could be done but i am not sure

so please give me an answer!!!!

thanks