What's the highest quality audio file the Mazda connect infotainment system can play without any mods?
Will it play uncompressed WAV files?
why you want to do that? encode mp3 at 224kps and you are done. most people are more than OK with 160kbps. actually, 192kpbs is almost 20hz/20khz. take advantage of current technology (btw mp3 is very old - 1994 technology). today encodes are really superb. you can even find high end pro mp3 players/rec in rec studios