i just got a tach and i know where to run my light, power, and ground wires.....but where do i run my tach wire....i have a 95 civic dx without a stock tach...please help

 

or the negative wire running out of you distributor.

 

its not hard, under the hood by the brake booster there is a little square plastic box, with a rubber cover, remove the rubber cover,there should be 1 wire, solder wire to extra wire on tak, and run the wires through the fire wall, then connect other wires, snip the 2 wires in the back of the tack so it works on a 4 cylinder, and wammo.5"tack w/shiftlight