Trolling motors question

Has anyone tried to tie more than one trolling motor in a series where they can becontrolled by one control head?

I don't think you can do it like you explain...

I use a Trolling Motor switch made by Big Foot to control my rear trolling motors from the front. But all it does is turn them on. I steer with the front TM, so the rear TMs stay forward all the time.

https://www.basspro.com/webapp/wcs/...1_16071_225001000_225000000_225001000_225-1-0

Here is my idea: I have two trollng motors that I have come accross. Both older Min Kota transom mounts with equal thrust. I'm not worried about the steering as much as I am the abilty to controll the speed / forward & reverse from 1 control head. Does that make sense?

It may be easier to build a control box with a multi-position radial switch and mount it somewhere and get rid of the shaft mounted heads altogether. Then you could slave the shafts together with a couple of simple brackets and a connecting rod and have steering as well. The problem may be in finding a radial switch with that many positions, all the forward speeds and the reverse speeds. Too many would be okay, but too few will leave you with out some speeds; no big deal really except the speed you don't have is the one you need on the water!

That's a idea. Thanks.