All greetings!
I know that modern HI-FI systems support Wav format and have a USB port. The latest PIONEER CDJ-900, 2000 models support wav! If you have PIONEER systems: AVIC-F900BT, AVIC-F500BT, AVIC-F10BT in your car you can listen wavs too.
Besides CS has doubles wav in mp3 format for an older model that does not support wav.