good day sir!

from what i know, there are universal type cd changers. but they work as an fm modulator. meaning you listen to the cds through fm stations. matching the HU unit with the same brand of cd changer is the best way you can utilize yung cd changer capability of your HU. before i have a stock alpine head unit connected to a universal type pioneer cd changer. now that ive change my HU to pioneer i can now control the cd changer through my pioneer HU.

hope this helps!