does anyone know the wiring diagram for the stereo----for a 94 prelude---which wire is the remote wire from the factory connector--......or the ignition key switch and the accessories wire---to install the tach....i know of the big white and big yellow---big white is probably the ignition key switch---but not sure of the yellow wire.

thanks

 

Try to get your hands on a helms manual. If not ask in the car audio forum, some of those guys may look it up for you.