auto meter tach help

[silvermonte]

Im getting all the loose ends on my project figured out and i started looking at my gauges that i got for xmas and is seems that my Auto Meter tach #5897 only came with the tach and no install kit. Is this normal for a tach? It says it comes with a install kit but it only has the light bulbs and the covers to go on the bulb, it has 4 prongs on the back of the tach but no wires or anything to hook them to, I find it odd to have to make your own wires but maybe its this way with all after markets stuff, I really wouldnt know as this is my first one. As some added info i have a MSD set up with coil and a 6AL box. Its going in a 90 s10 that didnt have a tach from the factory as far as I know.