Garage door top stiffener

Hello everyone. I just joined and in need of feedback regarding a garage door problem.
Several years back I purchased this house with a 2 car garage. The doors are uninsulated metal doors, 7 high x 9 wide on each door.
Shortly after I moved in, I noticed the one door use to have a garage door opener, and was told by my neighbor that the previous owner took it with him. 
I want to insulate my doors and put an opener on one. But I noticed there is nor bracing or stiffener or whatever you call it, on the top of the door.
What do I need to use to make that door stiffer at the top?
I didn't realize that the top of the door has a wide gap, where you can see light from outside, not to mention wind.
In process of insulating walls and installing ceiling, but that door needs work.
Any feedback would be appreciated. A few pictures are included of the top of the door.
Thank you

You can add a u-bar stiffener (or strut) to the top section of the door to help stiffen the section. Your local garage door dealer should have them (or get them for you). If you insulate the door and add a u-bar stiffener you'll need to also change the torsion spring since you are adding weight to the door. The torsion spring you need will be determined by the size and weight of the door (you're local door dealer should be able to figure this out and make or order the correct spring for you).

Hope this helps.

Thanks Brian, I'll inquire about the u-bar.

its automatic or manual.

perfect fitting, garage door company