Filter Filters Buick Regal Remove All Filters Price Under $50 (6) $50-$100 (5) $100-$500 (1) Condition New (12) Brand Harmony Audio (12) Fits Buick Regal 1984-1987 Factory Premium Speaker Replacement Harmony... $181.99 Fits Buick Regal 1995-2004 Rear Dash Replacement Speaker Harmony HA-C4... $49.99 Fits Buick Regal 1984-1987 Rear Dash Replacement Speaker Harmony HA-C35... $49.99 Fits Buick Regal 1995-2004 Rear Deck Replacement Speaker Harmony HA-C69... $78.99 Fits Buick Regal 1984-1987 Rear Deck Replacement Speaker Harmony HA-C69... $78.99 Fits Buick Regal 1995-2004 Rear Dash Replacement Speaker Harmony HA-R4 Speakers $35.99 Fits Buick Regal 1988-1994 Front Door Replacement Speaker Harmony HA-R5 Speakers $44.99 Fits Buick Regal 1995-2004 Rear Deck Replacement Speaker Harmony HA-R69 Speakers $63.99 Fits Buick Regal 1984-1987 Front Door Replacement Speaker Harmony HA-R5 Speakers $44.99 Fits Buick Regal 1984-1987 Rear Dash Replacement Speaker Harmony HA-R35 Speakers $37.99 Fits Buick Regal 1988-1994 Rear Dash Replacement Speaker Harmony HA-R69 Speakers $63.99 Fits Buick Regal 1984-1987 Rear Deck Replacement Speaker Harmony HA-R69 Speakers $63.99