Filter Filters Cadillac Coupe DeVille Remove All Filters Price Under $50 (1) $50-$100 (1) $100-$500 (12) Condition New (14) Brand Harmony Audio (11) Kicker (3) Cadillac Coupe DeVille 1985-1987 OEM Speaker Upgrade Harmony Speakers Package $134.99 Fits Cadillac Coupe DeVille 1988-1989 OEM Speaker Upgrade Harmony Premium... $125.99 Cadillac Coupe DeVille 1988-1989 OEM Speaker Upgrade Harmony Speakers Package $94.99 Cadillac Coupe DeVille 1985-1987 OEM Speaker Upgrade Kicker DS Coax Package New $229.97 Cadillac Coupe DeVille 1990-1993 OEM Speaker Upgrade Kicker DS Coax Package New $229.97 Cadillac Coupe DeVille 1988-1989 OEM Speaker Upgrade Kicker DS Coax Package New $159.98 Cadillac Coupe DeVille 1990-1993 OEM Speaker Upgrade Harmony Speakers Package $134.99 Cadillac Coupe DeVille 1988-1993 Factory Radio OEM Original Stereo Wire Harness $7.95 Compatible with Cadillac Coupe DeVille 85-87 OEM Speaker Replacement Harmony... $300.99 Compatible with Cadillac Coupe DeVille 88-89 OEM Speaker Replacement Harmony... $278.99 Compatible with Cadillac Coupe DeVille 88-89 OEM Speaker Replacement Harmony... $224.99 Compatible with Cadillac Coupe DeVille 85-87 OEM Speaker Replacement Harmony... $250.99 Compatible with Cadillac Coupe DeVille 90-93 OEM Speaker Replacement Harmony... $280.99 Compatible with Cadillac Coupe DeVille 90-93 OEM Speaker Replacement Harmony... $325.99