I'll add that I installed an Autometer tach with a shift light. The light is hard wired into the tach, but mounts separately from it. The tach itself is in the dash where the clock that showed the correct time twice a day used to be.
With the Dakota Digital gauges, I'll need a programmable stand alone shift light from my understanding. The DD dash can be setup to indicate a shift point has been reached, but running my manual transmission Roadrunner down the 1320 keeps me pretty busy, so I need a shift light that's hard to miss when it lights.
I AM going to try whatever "light" indicator the DD setup offers, but I suspect I'll need something that is easier to notice.