Mk8 Style Audio questions

[mageor]

Good afternoon people. Some audio related questions (Discovery Pro) :
1. Is there any sub output on the back of Golf's Audio system?
2. Is there any digital output too?
3. What is the maximum quality that the native Tidal app decodes songs...
4. Anyone knows for sure the codec used on Bluetooth music playback?
5. Is there any analog input at the rear of the audio system?

That is for today.... I am trying to find ways to improve the sound in our car.

 

[tos]

1, if you have Harman/Kardon, I took signal from H/K sub for exrta bass
2. Signal is going to amp via ethernet cable, analog signal only from speakers (front, because rear speakers have limited)
4 android auto/carplay signal goes in without packing, do not use Bluetooth if you want best quality
5 no analog input, digital with usb-c memory card