I leave my top off 9 months out of the year and dont have any problems. my seats are waterproof so i just wipe em off and go. if it rains real hard my back speakers wont work for about a day till they dry out but theyre just cheap 6x9s sitting on the fender. i put a waterproof marine cd player and radio in cause everytime i hosed off the dash after muddin it wouldnt work for about a day but i hose the shit out of the whole dash and all and thats the only problem ive ever had.