The same ones.
You have to install proper eyebolts in the roof of the cab to support them. You will need a pair of eye bolts, washers, and nuts, and a drill that is the right size to make the hole.

Edit: If you don't want to damage the cabinet, you can install blocks on the inside and screw a support to them, and put the eye bolts on that. Gotta have some handiness, be creative, and over-engineer it a little for safety.