- Decrease trim features a 7mm screw and T20 screw. Eliminate and pull down tough. Not necessary to get rid of decreased trim for 2018's. 13razorbackfan reported: Also, I just did it a moment in the past, attempt clicking the gear icon or maybe the Mustang icon then drop by https://brooksdulyi.vblogetin.com/37552549/the-smart-trick-of-mustang-ecoboost-digital-dash-that-no-one-is-discussing