All four of my stock Land Rover 6" speakers looked like this!  I replaced the front ones with some 3-way 6 1/2" ones.

Here are the speaker boxes.  The locks are high security and pry resistant.  Plus I can have them keyed to matched my Tuffy center console.

Here is an inside view of the box. You can see the lock, and the slots that make the lock pry resistant.

This is the supplied aluminum baffle to enclose the speakers.  It's a perfect fit.

To get the best sound out of the boxes, I line everything in Dynamat.  This will make a noticeable difference and prevent that "tin" sound.

Here is the 6x9 installed.  I bought all four speakers, plus the Dynamat online for $100. 

With the old speakers removed, I was left with this open void and wires hanging out.  Several manufacturers sell a spacer to enclose this gap.  I chose another option...

I bent up some sheetmetal (I wish I would have used aluminum - duh) in the same shape as the original rear speaker enclosures.

Here are the two panels ready for paint.

And the panel installed after two coats of black.  These probably would have looked better in bare aluminum.

And the final install.  The system sounds 100 times better, now I can't wait until summer so I can take the top off and crank the tunes!!!