Lots and lots of screws.
When you lay the speakers face down to work on them, make sure you lay them on a surface that will not damage the covers, and do not allow them to slide whilst you are working, use something like a couple of towels on the floor before laying them down.
I expect that if you are capable of handling a soldering iron etc, you will not have any problem dealing with the terminals that are in the back plate, the wires lead on to the crossover which is in the front half of the speakers and you must slip the connectors off to seperate them, putting them back means you have to do it mostly by touch.