Not really finished with mine but this is the jist of it:
Trunk with the amp board. I have the sub on the left mounted in a sub box now sitting behind the amp board facing the rear seat so that it's completely hidden. I'm going to make a large board that goes in front of the amps with cutouts for just the amps and the trunk hinges. Then have everything upholstered to match the interior.
Door panels. They have (1) 1" tweeter, (1) 4" midrange, (1) 6.5" woofer and (1) 5.25" coaxial speaker.
I have everything hooked up to my stock stereo head unit that I've added an MP3 player jack to. Fired it up last year just to see how it sounded and was very pleased.
I originally had two of these 12" subs but decided to just test one to see how I liked it. Especially since it was easier to fit just one instead of two back there. I was trying to mimic my brothers Mach 1000 system in his Mustang as far as sound and loudness. Once I tested mine, decided to sell the other sub. LOL His sound system doesn't hold a candle to this one! And the best part is that it's not all bass.