Filter Filters New Isuzu I-Mark Remove All Filters Price Under $50 (1) $50-$100 (1) $100-$500 (5) Brand Harmony Audio (5) Kicker (2) Isuzu I-Mark: S/XS/RS/LS 85-91 OEM Speaker Upgrade Harmony (2) R4 R5 Package $72.99 Isuzu I-Mark: S/XS/RS/LS 85-91 OEM Speaker Upgrade Kicker (2) DSC4 DSC5 Package $129.98 Compatible with Isuzu I-Mark: S/XS/RS/LS 85-91 OEM Speaker Replacement... $200.99 Compatible with Isuzu I-Mark: S/XS/RS/LS 85-91 OEM Speaker Replacement... $247.99 Compatible with Isuzu I-Mark: S/XS/RS/LS 85-91 Speaker Replacement Kicker DS... $359.97 Compatible with Isuzu I-Mark: S/XS/RS/LS 85-91 Speaker Replacement Kicker DS... $234.99 Isuzu I-Mark 1985-1991 Factory Speaker Replacement Connector Harness Kit $23.95