And what I REALLY need is something to tell me how close I'm getting to the trailer ball when I back. I can line up just fine- but then I'm always getting out, measuring how much further, and trying to back just that far.
Bobbie go online to Harbor Frieght and order item#95684-3VGA. They are magnetic backup aids, one for the TV and one for the trailer, that you watch in your rear view mirror and when the meet you are in the correct position.
I have been towing all of my life and I wish I had bought a set of these years ago.
Some one here mentioned them a few weeks ago so I bought a set. They were very inexpensive, about $12.00 including shipping.
This is the second best thing I have invested in for camping.