Multi LED shift box

Has anyone ever tried to make a Multi LED shift light? mount it just above the rear section of the steering wheel?

eg

( 0 0 0 0 )

first one being green - 2900Rpm
second one being Yellow - 6000Rpm
third one being yellow - 7500Rpm
fourth one being red - 8500 Rpm

(assuming you have a K pro)

i was reading about and i got the impression that you use a resistor to set up the autometer shift light. if thats the case whats to stop you from building your own to go off at your own preset resistances?

assuming i interpreted correctly

-Jeff