Audi A5 B&O Sound - Adding Subwoofer with Amp advice - AudiWorld Forums
Car Audio & Security - Audi A5 S-line with complete audio install. Dynamat Sound Deadning throughout the complete car, front, doors and boot! JL Audio XD700/5 amp, JL Audio ZR-650-CSi in the
Audi A5 Subwoofer Upgrade OEM style... (Not B&O) | Audi A5 Forum & Audi S5 Forum
Audi A5 8T Sportback Sound System Subwoofer Woofer Bassbox 8T8035382 Originale | eBay