How do you replace alternator in 2005 Toyota Avalon 3.5L?

To replace the alternator in a 2005 Toyota Avalon with a 3.5L engine, first disconnect the negative battery terminal to ensure safety. Remove the drive belt by loosening the tensioner, then disconnect the electrical connectors and bolts securing the alternator. Once the old alternator is removed, position the new alternator in place, secure it with bolts, reconnect the electrical connectors, and reattach the drive belt. Finally, reconnect the battery terminal and start the vehicle to ensure proper installation.