Here are the details of my 4080 box install:

JL250/1 amp $400
JL10W3V2D4 $200
MB Quart PCE216 front door speakers $350 (demo)
Various cabling and dynamat, LOC $300
3 yr warranty $100
Install $300
4080 box with Infinti grill $335 shipped

$1985 total

The 4080 box is beautuful, installer at Tweeter was extremely impressed with quality of finish and rigity at that price. Highly recommended, and 4080 was pleasure to deal with, offering great advice, posted earlier by me. The MB quarts were a deviation from the recommended JL door speakers, but since they were $550 list and $350 demo, and the (Tweeter) installler favored them - I went with the MBs. The LOC was run from front MB speakers, crossover set at 100hz. The fader is set as +2 front, favoring the woofer and front speakers over the rear deck and rear panel speakers. The bass is set at -2, as the JL amp can easlity overpower the stock bose speakeramp, with too much bass. The JL 250/1 was bolted on top of the stock bose amp in the plastic compartment next to spare tire; there is apost on this somewhere as well.
The sound is awesome compared to stock.

4080 is partial to the JL500/1, but since it looked like it would not fit (in the plastic enclosure), I went with the JL250/1, and the matched (lesser) driver.

The MBs are far superior to the stock speakers all over, and the JL sub system gives me plenty of bottom end vs stock, and enough for the type of music (plain old rock&roll) I listen to. No rattles at all at my levels, up to #25.

Nits: At volumes over #20, the bass increases disproportionately to the volume of the rest of the system, as the stock bose amp runs out of gas. I don't go there much, and get plenty of bottom end at moderate levels.

Next steps?
Has anyone mounted a JL 4 way amp under the JL250/1 in the plastic box using the stock bose amp mount (replacing the blose)? Which one fits? If I were to do anything next, it would be to lose the blose amp for a JL, and to replace the rear deck speakers with MBs (if available). I would most likely avoid the labor of replacing the rear seat side speakers, and just leave them - using the new amp to drive the front MBs, rear deck speakers (tbd), and stock side rears?

Thanks to all who offered advice in various threads, and my piece of advice, fwiw, is to use the 4080 box - he is a straight up guy, and the box looks fantastic back there. Very well done, 4080. There is a detailed MB front install thread with pics that the installer found very helpful, search the archive for details.

I won't post pics, as the amps are in the plastic box, the 4080 box is just like all the other pics already posted, and the MBs are behind the stock front grills.

 

pics?

 

Nothing to see.

4080 box is standard - search archives under "4080"

For the MB Quart install - search archives under "MB QUART"

The amp is hidden under the plastic cover in trunk next to spare, MB quarts under stock grills on door.