tachometer

I have a 2018 freewheeler I want to add a analog tach. Has anyone done this? What brand of tach and how to mount it. Also where to pick up the electrical rpm signal. Harleys location for information window on tank gauge cluster to say the least is unsafe! Any ideas will be welcome thanks in advance

Go to Harley Davidson Forums,click on touring section and search for thread titled"Road King and the tach Nazi". Lots of info in that thread.