Filter Filters Pontiac G8 Remove All Filters Price Under $50 (3) $50-$100 (2) $100-$500 (4) Condition New (9) Brand Harmony Audio (9) Fits Pontiac G8 2008-2009 Front Dash Replacement Speaker HA-C35 Premium... $49.95 Fits Pontiac G8 2008-2009 OEM Premium Speaker Upgrade Harmony C65 C35 C69... $181.99 Pontiac G8 2008-2009 OEM Speaker Upgrade Harmony R65 R35 R69 Package New $136.99 Fits Pontiac G8 2008-2009 Rear Deck Replacement Speaker Harmony HA-R69 Speakers $59.95 Fits Pontiac G8 2008-2009 Front Dash Replacement Speaker HA-R35 Speakers New $32.95 Fits Pontiac G8 2008-2009 Rear Deck Replacement Speaker Harmony HA-C69... $79.95 Compatible with Pontiac G8 2008-2009 OEM Speakers Replacement Harmony C65 C35... $310.99 Fits Pontiac G8 2008-2009 Front Door Replacement Harmony HA-R65 Speakers New $44.95 Compatible with Pontiac G8 2008-2009 OEM Speaker Replacement Harmony R65 R35... $249.99