Its not too hard, but it is a little time consuming. Of course you have to take out the old manual regulator. The glass is the same,so you could save some cash cuz you dont have to buy the glass. Make sure you get the complete harness. Make sure you get the regulators, ect. The one thing you have to watch out for is to keep the modle years close. 87 thru 90 match, 91 to 96 match. Im not to sure about the years after that you would have to do some checking on the later years. You will need a drill to get the regulators out because they are rivited. To wire it you will have to hard wire it into your jeep unless you get the fuse block and everything that goes with that (this way would be a ton of work). make sure you use a fuse when you wire it. If you have more guestions PM me and I will answer your questions. I do have extra power regulators for sale but no harness, but I think shipping to Mexico might not be worth it. You also can add power locks while your in there, its not that much extra work. Good Luck!