Drive Belt.
1) Move seats forward and remove carpet from behind seats.
2) Undo the nuts and bolts that fix the metal cover to the front of the engine to expose the front of the engine.
3) Use a 15/16 wrench and turn clockwise on the adjuster to loosen the belt tension. Simply peel off the belt and be sure to route the new belt the same way.
4) Make sure that the new belt is sitting correctly in the grooves before starting engine to test.