New here. I just purchased a 2018 Audi Q7 with 39k miles. The car looks great now, but I wanted to get started off on the right foot when it comes to cleaning and protecting the car. I was reasonable educated about detailing back in the early 2000's, so I have a Porter Cable random orbital buffer, and the right wash mitt and bucket set up. Past that, I'm hoping someone can recommend the right first step (light polish followed by protective coating?) to get the car looking its best and protected appropriately. Thanks!