I understand what you mean but there is only room for 9 round LED's in the PRNDL spot. The spot is occupied by a black painted piece of styrofoam from the factory
I figure have the green illuminated at idle and have it register in the yellow at hwy speeds and maxed out red at 6000 RPM. I may stick it on the car tomorrow.
Believe it or not this is an offshoot of my ACCII experiments...