ALDO:

A retrofit is possible. The only problem is the amount of work. You have to adapt and change parts of the cable system. For that you have to remove a lot of parts. So it is very very expensive and not worth ist. 

Last information I got is: Impossible. For various software, control unit(s) and cable adaptation related reasons. Impossible for regular Porsche dealers but probably not impossible for Porsche if they want to.

Maybe they should offer some sort of retrofit kit but would you pay 5k or 6k for such a kit? I doubt it. I know I wouldn't.

Porsche should better offer a BOSE "enhancement" kit with different loudspeakers for older cars who didn't get Burmester. It would be easily possible and it shouldn't cost them a lot but they could sell it for at least 1k or more.


--

RC (Germany) - Rennteam Editor Porsche 991 Carrera 4 GTS Cabriolet, Porsche Macan Turbo, Ford Mustang GT500 Shelby SVT (2014), Mini JCW (2015), Jeep Grand Cherokee SRT (2014)