I commented on your post about the license plate insert. They should just be clips. Grab them at the seams and pull up. If you got to AmericanMuscle.com mirror cover parts they should have install instructions that will show you how.
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2011 V6 Race Red - Roush Axle Back Exhaust, GT500 Steering Wheel, GROM Audio Bluetooth Module, Raxiom Aero Smoked Tail lights, Raxiom GPS