Hello, I am getting the Proton Saga 2019 Touchscreen HUD only support Bluetooth Audio input, don't have aux input.
I want to plug in portable Music player DAP FiiO Astell Kern SONY Walkman Hi-Fi Audiophile to playback DSD music file format.
What device to added and does this modification will void the warranty status? How about the ECU will cause trouble to start car engine? Thank you I am noob this is my first car. I am a headphone Audiophile Head-Fi.

Want to use the DAC inside the music player ESS DAC AKM DAC not inside the player