Ronny Volkart7 years ago+121Can this device also be used to amplify the aux signals from a smaratphone to the car audio system via the aux socket?Show in original language (German)MrCHief6 years ago000Yes, it works for me too. The sound is much better and you also get more volume out of weak smartphone outputs.Show in original language (German)CommentAnonymous7 years ago000So it works for me. I also use it for audio enhancement if I want to mark up an audio track from a smartphone.Show in original language (German)Comment