I installed a basic one and hid it in the dash behind the panel under the steering wheel.
Also wiring harness Tekonsha 3014
I haul my camper loaded at 3800lbs and my truck loaded. With my truck being a manual its likely over its rating. I tow and stop no prob. I set the controller up and tuned it to my trailer covered it up forget about it. Haven't had any issues.
If you're towing bigger or a verity of trailers you may want something more advanced. My set up has worked great for me and its hidden away.