Hi you love… have recently an Audi A6 as limousine C8. There is the normal bang olufsen soundsystem installed. With the well-known mmi touch with feedback. I would like to have a stronger and better subwoofer retrofitted as inconspicuously as possible. In addition, it would be nice if I can control the subwoofer via the mmi without extra remote cable too loudly controlled. As far as I know the battery in the back of the trunk and the limo is unfortunately front… of course makes the whole of course more complicated… It must probably be pulled extra power cable in the back into the trunk to also operate a potent leaning from 300 to 600rms In addition, the a6 has a 48volt power grid…in how far can I operate an active subwoofer…(perhaps also passive with extra end stage) I would like to have the whole thing installed best by the expert, even if I have otherwise laid out my own hand …I want to have the profi done with the new audio. rge the audio turns across the guarantee… (the car has 5 years from first registration guarantee) if something electronic breaks down maybe push it to my retrofit! (that I absolutely want to prevent!) budget lies at 1000euro Subwoofer is supposed to be in the reserve wheel chute. I hear mainly fast electronic music and am more of a bass fetishist…(the bang olufsen is not enough at large and also plays in the plastic housing more badly than right. How would he r upgrade the bass properly? Look forward to your suggestions