This Retrofit is a Complete Retrofit From Hi-Fi to Top Hi-Fi Harman kardon Audio System

From Hi-Fi ( 10 loudspeaker ) to Top Hi-Fi ( 16 Loudspeaker ) not only you get full surround audio system , but also better sound quality , and MOST Connection.

this retrofit comes with cover and all require parts  , ORIGINAL BMW PARTS

Price is without Rear dash , Rear dash can optional cut your original or replace it with additional COST

BMW G20 Harman kardon Retrofit
BMW G20 Harman kardon Speaker upgrade
BMW G20 Sound System
BMW G20 audio system
BMW G20 Audio Upgrade

--- The Factory BMW Harman Kardon speaker pakage

--- The Fitting price is $3000 Inc.