Filter Filters New Cadillac CTS Remove All Filters Price $50-$100 (1) $100-$500 (1) Brand Harmony Audio (1) Kicker (1) Cadillac CTS 2003-2007 Factory Speaker Replacement Kicker (2) DSC5 Package New $139.98 Cadillac CTS 2003-2016 Factory Speaker Replacement Harmony (2) R5 Package New $78.99