jawbone

Hi guys ! I'm looking for the loudest bluetooth speaker there is out there :) Why ? Because I want to blast music when I'm on the way up for a skydive in (very) noisy planes :D I've already taken up a friend's Bose Soundlink 2 (lets take that as a reference point) - and it just doesn't cut it...

I have a Big Jawbone Jambox (portable bluetooth speaker) as a replacement to my car's stereo system. Is it possible to hook up an amplifier and subwoofer to my car and somehow connect it to my speaker as well? Could this be done by using AUX cords?

I have a Big Jawbone Jambox (portable bluetooth speaker) as a replacement to my car's stereo system. Is it possible to hook up an amplifier and subwoofer to my car and somehow connect it to my speaker as well? Could this be done by using AUX cords?