There is a
YouTube video covering this here.
https://www.google.com/search?q=mgf+rear+light+removal&oq=mgf+rear+light+removal&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIKCAEQABiABBiiBDIKCAIQABiiBBiJBTIKCAMQABiABBiiBDIGCAQQRRhA0gEINzY3OGowajeoAgCwAgA&sourceid=chrome&ie=UTF-8#kpvalbx=_RnoiZrD4MqWnhbIPwN-n8A0_29