Upon dissembling the toy, I found one of the reasons why the neck clicks. there is a small plastic tab on the tip of the black neck coupler. this slides into the potentiometer located in the white base of the neck . This controls the rotation of the neck and prevents it from clicking. It got broken off. I got lucky and found the broken tab when I took apart the toy and managed to glue it back it on. I don’t know if the glue will hold. If it does not I will try and scan the base and see if I can 3d print it. I will make the .STL file available if need be.