Emergency help on express sunroof install!

[rvs9]

A little clarification on the instructions regarding installing the one touch express sunroof install:

1) Do I connect the express unit's wires (white, blue, green,& brown) to the orange and brown wires leading into the factory plug or the wires leading up into the roof after I make my cut?

2) Can I just wrap the express unit's ground wire around the sunroof motor mopunt screw and tighten or do I need to do more?

I did the install, but the sunroof doesn't work. I believe it is because I connected the unit's 4 wires to the orange/brown wires leading up into the roof and just wrapped the unit's ground wire around the motor mount screw, but I want to verify. Thx!