Deffo get yourself a Haynes manual, although be aware these aint like the manuals of old. They're made from recycled (and very thin) paper now so very easy to tear the page just turning it over.
If you can't trace the fault with the lights on buzzer, you can retro fit one very easily mate. I've fitted one to my mk1 MX5 for the same reason that the lights can be left on by mistake. Think it only cost a fiver or something. Will try and find the link for you. With the wiring diagram for the civic m that's in the Haynes book, should be a doddle to fit.