Q-Forms Kick Panel Enclosures (Brown) Install 6-1/2" components in your 2002-09 Chevrolet Trailblazer/GMC Envoy, 2005-07 Buick Rainier, or 2002-04 Olds Bravada at Crutchfield
Amazon.com: Harmony Audio Bundle Compatible with 2002-2004 Chevy S-10 Pickup HA-R46 New Front Dash Speaker Replacement Upgrade with HA-724568 Factory Speaker Replacement Harness : Electronics
NVX NSP4 | 1997-2004 Mitsubishi Montero Front Dash Speakers
Amazon.com: Harmony Audio Compatible with Chevy Trailblazer 2002-2009 Rear Door Factory Replacement HA-R65 Speakers New : Electronics
Amazon.com: Scosche Compatible with Select 2002 to 2004 Oldsmobile Bravada, 2002 to 2009 Chevrolet Trailblazer & GMC Envoy & 2004 to 2008 Isuzu Ascender 5.25" - 6.5" Speaker Adapters (1 Pair) SAGTE6 : Electronics
GMC Envoy Troubleshooting Speakers - YouTube
10 Best Trailblazer car audio ideas | car audio, trailblazer car, subwoofer box design
Amazon.com: Harmony Audio Bundle Compatible with 2002-2009 Chevy Trailblazer (2) HA-R65 6.5" New Factory Speaker Replacement Upgrade Package 300W Speakers with HA-724568 Factory Speaker Replacement Harness : Electronics