ISO Automated/Electric Trailer Hitch Coupler

I do it by myself too. I just get out once or twice. One thing I do that helps is I use the lever that opens the front window cover as a center guide then my tailgate has a screw the is dead center so I use them to help me get as close to center as possible without getting out. Works pretty well for me.

A back up camera is nice.

After that I recommend that only one of you back up to the trailer. The other person should go for a walk. The person backing up will have to bet in and out of the pickup a couple of times but, that sounds like less work and aggravation then the shouting match.

It doesn't have to be absolutely perfect you know. If I get within a half of a inch my TT will move enough to drop down on the ball

With my old trailer, I could open the gate on my SUV and look back and watch the ball line up with the trailer. The new trailer doesn't allow the gate to open, so I just line it up as best I can and then pop out of the truck a couple times to make sure I'm on point.

A camera is definitely your easiest option, unless you care to work out communication with your helper, so you have a system that works for both of you. A few times of my GF watching and nodding her head until I hear her yelling "STOP!!!!" and I had to explain that I needed either a visual (with hands) or verbal communication of actual distance to the ball cause just randomly yelling stop wasn't going to work out for either of us.

If you feel like spending the money, there is a gadget you can get that moves your trailer for you while it's not hitched up. All remotely controlled, like this one: https://www.youtube.com/watch?v=vUxsW-c-k6c

Probably the closest to what you are asking for is a remote control trailer mover. it's not going to be inexpensive, but it will help you hook up.
Link

Video

Bought a device that basically is a metal vee that fits on truck hitch, you just back up and the vee guides the tongue to center. We used it on our 19 ft trailer, not sure how it would work on bigger trailer? Got a Ram with backup camera so all is now good!

.....

Before I got the new TV with the backup camera I could line the tailgate latch bolts up with my level and it got me usually there some times I had to pull a little deeper but usually only took me one ot two walk backs from the truck.

I purchased this mirror...

CIPA FastHitch mirror

not long after we got our trailer. It worked really well and I like using it. However, the glass fell out in my hand and I stuck it back in because I was in a hurry. The device was cheaply made. I told myself then that I should run a bead of silicone around the perimeter of the glass to hold it in. Well, I didn't do it and not to long after the glass fell out and shattered on the ground.

Guess what? The mirror is no longer made. I can't find anything else similar to it.

I just have to get out 3 or 4 times to get the ball properly aligned now.

To make backing easier - camera
To stop the yelling - duct tape

Ivylog wrote:
I open the door and get out and look... usually takes two times but then I've been doing it for decades long before cameras. OK, I do have a dented license plate.

X2 minus the decades and dented license plate.