How to install mm465?

[r1]

What is the best way to install mm465's in the front door panels for the best Sound Quality?

1. Use them as free air drivers?
(In my car they wouldn't be sealed that well in this configuration from front and back of the speaker)

2. Use a plastic speaker baffle?

3. Construct a fiberglass enclosure?
(At what volume?)

4. Construct a box out of MDF?
(At what volume?)

I'm assuming the answer to my question is one of the four answers I listed, I just don't know which one. Again, I am trying to get the best possible Sound Quality out of these nice speakers.
Thanks.

[Kim]

R1,
These drivers are designed to be used in a "free air" condition.
If you were to build a enclosure and the volume of the enclosure is too small, then this can make the midrange take on a "hard character" due to the smaller box volume. Plus the lower bass performance is compromised.

Thanks,
Kim