Find car audio that fits your 2003 Chevrolet TrailBlazer EXT

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• Compatible with select 1984-2023 vehicles from Chevrolet, GMC, Buick Vehicles
• Connects aftermarket speakers to the factory speaker harness
• Quick and easy installation
• No cutting needed

• 9006 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

• Single & Double DIN Install Dash Kit
• Compatible with select 2000-2012 vehicles from Chevrolet, GMC, Pontiac Vehicles
• Accommodates ISO Single & Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

• Double-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• Easy 5-minute installation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Superior Design
• Will help make your ride perform at its best

• Double-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• Factory Amplifier Bypass Harness For Select 1997-2009 GM Vehicles
• Factory Amplifier Harness Includes 17ft. Of 16 Gauge Wire
• Harness Can Be Plugged In At Factory Amp And Ran To Location Of Aftermarket Radio/Amplifier

• GM / Chevrolet Antenna Adapter
• Aftermarket Antenna Male (Motorola Plug) to Factory Radio Female (Proprietary Plug)
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles

• Single-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• 880 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

• 5-1/4" - 6-1/2" Speaker Adapter
• Compatible with select 2002-2009 vehicles from GMC, Chevrolet, Isuzu Vehicles

• Compatible with select 2002-2009 vehicles from GMC, Chevrolet, Oldsmobile Vehicles
• Mounting adapter for 6-6.75" speakers
• GM speaker adapter 2002-2008

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified and amplified models
• Micro-B USB Updatable
• Pre-programmed to retain Steering Wheel Controls
• Color coded wires for easy installation

• Precision Balanced for Smooth Operation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Cadillac Vehicles
• Easy 5-minute installation
• Up to 300% more power
• Tool-grade steel rotor shaft
• Heavy duty double sealed bearings
• Heat resistant multifunction integrated regulator

• 6-6.75 inch Speaker Adapters
• Rear door location
• Sold as a pair
• Compatible with select 2002-2009 vehicles from GMC, Chevrolet, Oldsmobile Vehicles

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• Pair of Mounting adapters for 6-6.75 inch speakers
• Compatible with select 2002-2009 vehicles from GMC, Chevrolet, Oldsmobile Vehicles
• Install your speakers with ease
• Adapts 6" speakers to 6.75" locations
• If you've ever bought a new set of aftermarket speakers and they don't fit the weird shape in your car door, you need speaker adapters

• Single-DIN or Double-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions