Remove the sunroof assembly.
(Refer to Sunroof - "Sunroof Assembly")
Remove a drip link assembly (A) after lowering a guide thoroughly by pushing a slide to rear.
Remove the guide (A) and drip link (B).
Remove the drip link stopper (B).
Remove the drip link assembly (A).
Install in the reverse order of removal.
Place the position between (A) and (B) like the picture.
Make sure to initialize the motor.