Please help! My 2000 model toyota avalon speakers stopped working when the car was stuck in water over night. I noticed that when the car sunk, the battery went flat in less than 10mins and the speakers made a continous awful sound until the next morning when my mechanic came around and changed the batteries, but the speakers never worked again. I was advised to allow the water in the floor rug to dry up first and just maybe the speakers will work again. Pls advise.

Pls where can I get a good rewire to to check the systems of my 2000 model toyota avalon in Lagos.