mmmmmm...i am unable to watch this video here, but i have seen it elsewhere and i am slighly impressed. Being a electrical engineer i used to design and build high power ICE and i used to run approx 2K of sound in my car. One thing i would like to know is how many alternators and batteries does this guy have fitted ?? Also the engine must be running or a flat battery would immediatly happen. I suspect some mains voltage amplification has been used for this video and cabling to power these amps has been hidden. To get 17000W of real music sound (RMS) you would need many more speakers than this person has used. Also this vehicle is being shaken apart by the vibration, all the instrument cluster would start to malfunction and leaks will start to appear when it rains !! Trust me i had all sorts of problems caused by ICE..i also had spot welding failing where the roof was held on !! Oh, and several mates trying escape through the sunroof when the bass kicks in lol