How to Install a Subwoofer and Amplifier in a car - YouTube
SEAT IBIZA 6L Front Rear – Ground Zero GZIF 16x – 16 cm Speaker System Installation Kit : Amazon.de: Electronics & Photo
Crunch DSX 62 Speaker for Seat Ibiza Type 6L 2002-2008 Front Doors Rear Doors Side Rear : Amazon.co.uk: Electronics & Photo
Seat Ibiza 6L (02-08) Ground Zero - Altoparlanti 165 mm, porte anteriori o posteriori con isolamento Premium STP Black Silver Shop Pack (8 pannelli ciascuno 375 x 265 x 1,8 mm) : Amazon.it: Elettronica