- Reduced trim provides a 7mm screw and T20 screw. Eliminate and pull down tough. Not necessary to clear away lessen trim for 2018's. You simply will need to exchange your switches. There’s an awesome youtube tutorial by CJPonyParts on removing the wheel and changing switches. That's located listed here: https://manuelyvrlh.blogolenta.com/28819179/5-simple-techniques-for-mustang-with-digital-dash