Step 1: Remove the 4 M4 bolts on the back of the number plate bar.

Step 2: Grab the new longer M4 bolts and washers.

Make sure to use Loctite Blue on the bottom of the bolts. This helps keeping them tight under vibrations

Step 3: If you don't have indicator attachments on the sides, you will need to use the supplied washers to make everything level.

Step 4: Slide in the number plate light.

Adjust the height to where you want your number plate to sit. 

Use the remaining two bolts to affix it in place.

Step 5: Thread the wiring through the back of the number plate bracket and then in-between the hinges for the cleanest look.

Step 6: You will need to wire this to you bikes plate light connections, black wire is the ground.

As this is a universal part I can't advise any further. Sorry! There are plenty of YouTube tutorials for these sorts of things if you're struggling. Worse case, it's a 15 minute job for a workshop.