[livelong]

OK, so the title is a 'little misleading', but anyway....

I want to install a tachometer on my 95 geo prizm, so im going to go to a junk yard and grab a whole new guage panel, spedomemeter, gas, temp etc. and install it.

Before I do this, Im looking for help as to how to know weather or not my car already has the hook-ups. I believe it has to do with a wire attached to the ignition coil sensing how often the coil fires, right?? But is there something tell tale i can check for, b/c right now, after I have removed the instrumentation panel, I can't just look and say, 'oh, there's the hook up!'. Would it normally be the case that if the car doesn't come with a tach that the hook-up to the coil would need to be done

Your help appreciated.

Omar