WILL NOT START BATTERY IS GOOD on 2003 Porsche Boxster

WILL NOT START, BATTERY IS FINE, USED THE CAR TODAY AND EVERYTHING WAS FINE

Asked by for the 2003 Porsche Boxster
Do you have any warning lights on? What about the dash lights, are they coming on? Do you hear a clicking noise when you try to start it?
2 answers
the black box under the passengers seat has got water inside it from a leaking roof.... thats the problem i bet.....