Look up the installation video on YouTube. It was really pretty easy to do - took about an hour, and no special tools - Phillips, flat head, socket wrench. Oh, and a drill, as the factory speaker is riveted in, so just drill the top of the rivets off and get 4 #4 screws, nuts, and washers and attach the speaker to the new panel. You will also need to cut off the existing wire hold downs. I attached the one on the inside of the door first, and threaded the harness all through the panel, and then mounted it, and positioned the harness at each point and every hold lined up as it should. I just cut off the tab with the hold down pin, and ran their new hold down cable ties in the same place. Worked very well. Hopefully I won't be doing another one real soon, but I will buy another Dorman if needed.