Yep it’s a firmware update, they did mine yesterday, now the rear door speakers work! .. which makes a general improvement to the systems sound…. a little… it’s still a poor system.
Magnetic Grey with all the best bits
FPM375/COBB/MSD- Quaife LSD, DSC+Tractive Suspension, HJS200 cell sports cat and MT Cooler. Sync3 upgrade.
Was UK seller for DSC & Tractive Active suspension !!!