a small problem with the cable is the phones jack is in the front and the mic jack is in the back … the Y won’t go that far … well short of where it should be
The cable is originally intended for KX so it’s a possibility that it’s not a good match for a different model.
Consider an extension, maybe something like this:
https://www.amazon.com/dp/B01D2E54H4/
https://www.amazon.com/dp/B08MQHXGTZ/