under dash tach wiring harness

[southpaw]

benefits, I ordered the same tach a few days ago from dieselpage.com. I checked several places before I found it in stock. your mod yr may not have been wired for a tach? the earlier mods had a dealer only install with magnets my 93 has a wire under the steering column with plug. My 89 does not. The isspro catalogue shows the different year and appropriate application. anyone help 2inch tach holder that mounts to the steering column . samsram shows such an application however i havn,t been able to contact him. help someone. tks Ken.