Stereo issues.

So, I bought my Clio just over a year ago and it came with a stereo which wasn't the original for the car. I changed it in the end and bought all the required cables to work my steering wheel stereo adaptor controller thingy to then find out the stereo I bought doesn't have the hole for the adaptor. I checked the box and on the box it says '0EM WIRED REMOTE' Which on the back of the box says 'Allows the factory fitted steering wheel remote controller of the vehicle to control this unit, via optional interface.



I've tried so many times to figure out what it is but I'm having no luck, is there a wire I put into the back of the stereo somewhere or??

The stereo is a KENWOOD KMM-261.



Thanks guys (Y)