N nwagner44109 New member Feb 22, 2010 #1 i have a 89 toyota pickup that im trying to hook up a tach i have a tach form autozone the have a green wire thats for the rpms and a black thats griund and a red thats hot and white for the light
i have a 89 toyota pickup that im trying to hook up a tach i have a tach form autozone the have a green wire thats for the rpms and a black thats griund and a red thats hot and white for the light