Filter Filters Isuzu Truck Remove All Filters Price Under $50 (2) $50-$100 (3) $100-$500 (4) Condition New (9) Brand Harmony Audio (6) Kicker (3) Compatible with Isuzu Truck 1989-1995 OEM Speaker Replacement Harmony R5 R65... $210.99 Compatible with Isuzu Truck 1988-1988 OEM Speaker Replacement Harmony R4 &... $150.99 Compatible with Isuzu Truck 1986-1987 OEM Speaker Replacement Harmony R4 &... $140.99 Isuzu Truck 1989-1995 Factory Speaker Replacement Kicker DSC5 DSC65 Package New $149.98 Isuzu Truck 1989-1995 Factory Speaker Replacement Harmony R5 R65 Package New $83.99 Isuzu Truck 1986-1987 Factory Speaker Replacement Harmony R4 Speakers Package $32.95 Isuzu Truck 1986-1987 Factory Speaker Replacement Kicker DS Coaxial DSC4 New $59.99 Isuzu Truck 1988-1988 Factory Speaker Replacement Kicker DSC4 & Metra Harness $59.99 Isuzu Truck 1988-1988 Factory Speaker Replacement Harmony R4 & Metra Harness $30.99