Boyfriend put battery in backwards...HELP!
We have a 98 toyota rav4, standard. My boyfriend put the battery in backwards one day. When he did that all of the instruments shut down. Nothing worked except the headlights, and the car DID run. Until the next day. He went to his brothers house, then had to get him to jump it off. He drove to our house, almost got there and the batt. died. which means alternator. I Know i need a new alt. but what else? I dont want to replace that, and have it go out again. Is it the computer, a wire? All of the fuses are still good. Any advise would be great!