I have a plan to simply build two pairs of front and back 2nd Order (12dB/Octave) 2 Way passive crossovers and remove the inline series capacitors from all the tweeters.
Also in the works is a 10" Rockford Fostgate Sub that I've installed onto a baffleboard that fits under the factory cargo...
It fits great. Pictures coming soon. Quite simply, here's what I'm working on. I bought a 1/2" thick sheet of MDF from Home Depot (you know, the smaller sheets available on the shelves by the lumber dept.). Had them cut it to size of the floor of the cargo area. I cutout the hole for my 10"...