hi guys, i just bought a auto meter shift light.it was used but in awesome condition.i paid 10 dollars for it.my question is how do i hook this up.it has 2 wires but what do i hook this too.10 dollars i think was a good *** deal.the color is blue.it works fine when hooked up straight to a battery.please help me thanks......

 

huuuh?! What is blue? The shift light? the wire? the tach? your rx7? your *****? come one man. you put in garbage you get out garbage.