Maybe it can be useful for users who want to listen music while driving ...
I´m using a Marshall Emberton BT Speaker in my car and I am very happy with it, no plate or radio needed, no sound system installation, speakers, etc , water and dust proof and you can turn up/down volume and skip songs using the jog button of the speaker itself.
This speaker sounds like a much bigger one, it sounds two ways so you can´t determine if the font its lef of right, it´s like you have two 6x9 speakers behind you.
Easy to carry and high volume in a small rubber rectangule situated behind the hand brake (central part) (it doesn´t move cornering).
My tip and trick of the day