Location... underneath the driver matt... need to remove door corner cleeps and some other screws... only takes 15 minutes do remove it... replacement is easy to.. locate a black box under the insulation... and open.... if the module is broken and don't want to buy new one cuz it cost $100000 go to BMW dealer not Audi because they dont have it or they wont sell.. buy the fiber optic bypass adapter... then you should be good. no need to put back your bluetooth module

 

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