What you are describing is the parking light circuit. Just fixed a Honda with the same problem(all the same lights blew out). Ended up being the licence plate lights were rubbing the body of the car(car was in a previous accident). Off the top of my head, all the things in the circuit were as follows: front and rear parking lights, gauge cluster lights, radio dimmer wire(radio dimms when lights are on), dash lights dimmer, parking light/headlight switch, and anything else that is suppose to light up on the dash(hazzard button, defroster button, ac/heater controls, cigarette lighter light, etc......... I would take a mental inventory of what has been messed with lately. Have you changed any bulbs or removed the radio? Also, water is the worse type of short(hard to find), so mabey one of your exterior lights got wet? If it was a honda i could help more, but good luck anyways.