Quote:
Originally Posted by Homerlovesbeer
I have a 4.8is with the full factory DSP Nav unit installed with CD changer and TV module. All I did was run the correct Xtrons cable from the Head Unit to the connection in the rear battery compartment and had perfect working audio.
I believe the Xtrons unit turns on the DSP amp 
This is my unit
https://xtrons.com.au/bmw-x5-e53-and...l-4g-ix1253bhl |
But I see you do have the iBus app - so perhaps that is enabling the DSP amp?
The Resler USB interface is solely to allow the android head unit to communicate with the car's data bus - if the Xtrons can do that itself, then no Resler needed, just the iBus app (with DSP license).
Is the CD Changer the factoy unit, in the boot (trunk)?
Nice looking setup, by the way..
