Change Dryer 3-prong Plug to 4-Prong by briney | Nov 15, 2024 | How To | 0 comments Remove cover plate. Remove wires from connector. Attach Red, White, Black to the connector matched by color. The green ground wire on the 4-prong is the ground and can be attached to the metal cabinet. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website