yes it is possible to completly upgrade the s550's audio system. This one has Focal speakers throughout and STEK amplifiers made in Italy. All the amps and speakers are hidden for that stealth look and lost only about 8" of trunk space. Oh yeah....it sounds amazing too...

[IMG]local://upfiles/30953/FA81339D8AF243E18DD25358C7F873D4.jpg[/IMG]

 

You wouldnt happen to have any pictures would you...?

 

Sorry, that is the only one. The rest of the audio gear is hidden in factory locations and the amps are behind trim panel for the subs.

 

Oh i see, I prefer to keep things hidden as well to keep vehicles looking as close to factory as possible. Keeps the vehicle looking clean