Antenna & Radio for 2021 Chevrolet Trailblazer
No.
Part # / Description / Price
Price
2
Radio Antenna Base 
GM
GM Description: Labeled 42747533. Without satellite radio. Seals out water from the vehicle
Provides the antenna system ground
MSRP $128.93
$70.92
MSRP $128.93
$70.92
3
Headlining Antenna Coaxial Cable GM
GM Description: Without satellite radio.
Manufactured to GM OE specification for fit, form, and function
MSRP $81.06
$45.39
MSRP $81.06
$45.39
No.
Part # / Description / Price
Price
2
Front Side Door Speaker GM
GM Positions: Left
Description: Speakers, without bose audio, 4 speaker system. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $39.20
$22.74
MSRP $39.20
$22.74
3
Radio Rear Side Door Speaker GM
GM Positions: Left
Description: Speakers, without bose audio. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $55.54
$31.10
MSRP $55.54
$31.10
No.
Part # / Description / Price
Price
1
MSRP $332.95
$217.75
2
MSRP $36.14
$20.96
Related Parts
Part # / Description / Price
Price
Rear Compartment Speaker GM
GM Description: Speakers. Restores the sound quality of your audio system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $492.65
$268.50
MSRP $492.65
$268.50
Radio Front Side Door Speaker GM
GM Description: Speakers, without bose audio, 6 speaker system. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $37.06
$21.49
MSRP $37.06
$21.49
Radio GM
GM Notes: Order By Vehicle Application.
Description: Trailblazer. 8 display. Radio & components, 8 display, labeled: 42712880.
MSRP $217.47
$142.22
MSRP $217.47
$142.22
Radio GM
GM Notes: Order By Vehicle Application.
Description: Trailblazer. 8 display. Radio & components, 8 display, labeled: 42742483.
MSRP $190.87
$124.83
MSRP $190.87
$124.83
Radio Speaker Amplifier GM
GM Description: Speakers, with bose audio, without noise control system, labeled 42703655. Helps provide a rich listening experience in your vehicle
GM-recommended replacement part for your GM vehicle's original factory audio amplifier
MSRP $478.58
$260.83
MSRP $478.58
$260.83
Radio Speaker Amplifier GM
GM Description: Speakers, with bose audio, with noise control system, labeled 42712504. Helps provide a rich listening experience in your vehicle
GM-recommended replacement part for your GM vehicle's original factory audio amplifier
MSRP $558.14
$304.19
MSRP $558.14
$304.19
Radio Antenna Base GM
GM Description: With satellite radio, labeled 42747534. Seals out water from the vehicle
Provides the antenna system ground
MSRP $97.14
$54.40
MSRP $280.66
$152.96
Rear Side Door Speaker GM
GM Description: With premium audio. Speakers, with bose audio. Rear dr speaker. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $107.20
$58.96
MSRP $107.20
$58.96
Front Door Radio Speaker GM
GM Description: With Bose audio. GM-recommended replacement part for your GM vehicle's original factory speaker