1. Just save the red area using sandpaper (or if you have no patience use a cutting tool). make sure you don't shave too much by constantly checking the fitment. should turn roughly 45 degrees
2. after it locks in place turn on your emergency signal to help you get it aligned. it should start blinking once aligned.
3. lock it in place.
install should take about 15-20 mins. PM if you have any questions. I am more than willing to help out a fellow member.
FYI...mine does not flicker.