How do you setup a dash mounted tachometer? I dont know at all what to do, like whare it picks up the signal, or how to hookup the shift light to an RPM activation switch and whatnot. Any help on how to set this or a 2-step would be appreciated.

Also, autometer guages come with built in lights for night time, when you turn the lights on do the lights in the guages come on too? Or is there a separate switch for that too.