yea i had many many dx hatchbacks.all of them have had tachs.the dx has same cluster as (Si) and people try to sell si clusters for more but pointless.
only thing i recall is my 4spd models had no tach. maybe there is a 88-89 dx with no tach ? im not sure.im sure i could find out something but anyways back to topic ..
WE NEED CLUSTER ! hahahaha