2121 - Audio System - Speakers, Subwoofer, Amplifier Speaker - Front Door - LH - Premium (Remove and Replace) Correction Code 21210502 Speaker - Rear Door All, Front Door Base Audio (Remove and Replace) Correction Code 21211002 Subwoofer Assembly (Remove and Replace) Correction Code 21212002 Tweeter - 'A' Post - LH (Remove and Replace) Correction Code 21212502 Speaker - Rear - LH/RH (Remove and Replace) Correction Code 21213002 Premium Boost Amplifier (Remove and Replace) Correction Code 21213502 Premium Boost Amplifier (RHD) (Remove and Replace) Correction Code 21213512 Parent topic: 21 - INFOTAINMENT