Thunder Mass, I ran into the same problem, when installing a complete sound system in my 2000 TJ.
What I did, was made a custom bracket to accommodate the original holes, and used that same bracket, for the speaker, the depth of the new bracket was enough, I did nut have to trim anything. I can send a few finished pics if you would like.
What I did, was made a custom bracket to accommodate the original holes, and used that same bracket, for the speaker, the depth of the new bracket was enough, I did nut have to trim anything. I can send a few finished pics if you would like.