security system stays intact, however i ripped out all teh bose components, plus all teh factory wiring for the stereo, and put in better wires and 2 amps in the trunk, one 800x1 mono kenwood for 2 JL 12W3-d4's, and one to control the 5 1/4" components (which will fit in factory location, with the stock cover still on the door), and the 3 way kenwood 6x9's in the rear. i have a couple pics... i hit with a decibel meter 149 dB's with that setup.... now i'm trying to figure out a way to use MDF particle board which weighs 1/3 the amount of regular sub box particle board, so my cars rear end won't sag as much as it did with prior setup. see i will have fast S6 with sweet wheels, and a lowered suspension coming before spring break down in florida, and a loud, deep, hard hitting, yet very very very clear stereo to boot. i'm not really into bumping down the street to wake up neighbors... i just like to nkow its there when i needed it. i usually lower the settings when listening normally, but still with a decent amount of bass? any questions? by the way don't steal this design, actually on the second hand, ya don't have a clue as to what the box looks like in the trunk.. if you want i'll post a couple more pics.
<img src="http://quattro.dynip.com/pioneer%20deck.jpg">
<img src="http://quattro.dynip.com/sub box.jpg">
<img src="http://quattro.dynip.com/dsc00054.jpg">
My S6!