Transforming BMW M4 with Audio and Multimedia Upgrades – Apple Carplay Wireless – Android Auto wireless – Alpine Prima BMW – XFIRE BMW80W subwoofer – XFIRE EFX1204D – Conection specialist cables | B&B Audioconcepts Cardiff   Transforming BMW M4 with Audio and Multimedia Upgrades Welcome to another exciting journey into the world of car audio … Continue reading Transforming BMW M4 with Audio and Multimedia Upgrades