A4 B7 Cabriolet Front Door Bose Speaker Grill Platinum: Amazon.co.uk: Electronics & Photo
tomzz Audio 4003-002 Speaker Installation Set Compatible with Audi A3 8P 8PA A4 B7 Front Door 165 mm Coaxial System TA16.5-Pro : Amazon.co.uk: Electronics & Photo
Hertz Front-Boxing Composting 165 mm Automotive - / Car Audio Speaker for Audi A4 (B7) 300 Watt : Amazon.co.uk: Electronics & Photo
Harmony Audio Compatible with 1996-2009 Audi A4 HA-R5 Front Door Replacement 5.25" 225W Speakers : Electronics