Small update to this post.
As I said, I just used the new speaker as a template and drilled new mounting holes. Not everybody wants to drill holes in their Jeep. [USER=19161]@Anybodyhome[/USER] had an alternative. You can get THIS pair of adapters, with or without a harness. The adapter bolts to your speaker and will mate to the OEM mounting holes. The optional harness plugs into your existing connection and has spade connectors on the other end. This is a good option if you think you might want to go back to the stock speakers at some point. I can't imagine why you would, but it's an option.
