Any type of micro or push button will work, just be sure it's water proof. The trans switch doesn't draw many amps, so heavy duty is not really needed. Here are lots of photos to look at, https://www.google.com/search?q=tur...HbVdB_gQsAQIMA&biw=1514&bih=1017

I may have one laying around, I will dig around tomorrow and see if I can find one.