I already connected all the gauges for my 97 honda civic ex. Just don't know where all the wiring needs to go. I have one side connected which is the ground wire just need the parking light switch (red wire). Dont know where that goes?

 

Find the wire under your dash that runs to the instrument panel. The electrical wire (red) will need to go on that one. You should solder it so you won't have any problems with it disconnecting while you're driving. You might also want to remove the lights on the top of the panel (they illuminate the panel from the top front) so there will be no glare at night.