Electric module water damage
 

Got a 2002 Spyder and get water inside when it rains. Got two questions:

Where are the drains for the convertible ? I'm pretty sure they're plugged

Is there a module that runs the radio? After a heavy rain the radio was making sound intermittently all speakers with the car off and the key out. Made no difference if it was running battery finally died. Also the theft alarm was acting wide. Think the water shorted out some module but don't know where to start.