What should I install in by BMW to make the music as loud as possible?

I want to install something in my BMW (in the trunk) to MAXIMIZE the volume so that people can hear the music from thousands of feet away. What should I install?|||Most people install an amp and sub(s) for bass extension. Replacing the HU, speakers and installing an amp for them is common as well.





See my site for more info http://spkrbox1.spaces.live.com|||I would suggest the following:


First, depending on the quality of the stock speakers, I would either leave them in, or if they are bad, replace them with some component speakers (covers high's, mid's, and low's and is powered) for both driver and passenger side. Rockford Fosgate is the company I would choose, but there are many other quality products from different companies.





The next thing to cover is the bass. There are many ways you can get big bass, but all of them include a cd player of some sort, wiring, an amplifier and a subwoofer with a box. At a minimum, other parts can be used for even better performance like higher grade batteries, and capacitors.


The most extreme subwoofer is the MTX Jackhammer, which is very overboard and insanely loud. It weighs a lot and is huge. It may not even fit in your trunk, and if it does, it might weigh down your car too much.


If you dont want to go that crazy, I highly suggest the JL Audio W7 series. They come in 10-15" i believe, and just 1 is enough. So to go to the extreme I would get two JL 12W7's.


The highest performance rockford fosgate subwoofers are also very very nice.


Good Luck|||o.k. if you want extreme loud, you first have to prepare your beammer for the electrical load it will need, anotherwords.. beef up its powerplant.. this requires a new High output Alternator. also it requires a deep cycle battery, and a "big 3" wire upgrade. so far that is around 500-600 bucks... now from there you want to get a sub, Pioneer holds the world record for SPL (volume) so that sub is the best you can get, and it is designed for a ported box, . you could get just one and it would be plenty trust me on this... besides at the price who wants to by two.