So my new 2020 Trax comes with an envelope style cargo net, supposedly dealer installed. It was not. It has a 4 point connection. 2 on the bottom for clips on the net, and 2 on the top/sides where I'm guessing I need to remove caps to screw in 2 supplied hooks. Do these caps 'pop' out with a flathead or unscrew? Not wanting to damage anything, I'm thinking they pop out. Anyone familiar with the procedure?