Metra
Metra 70-2057 Amp Bypass Harness for Select Chevrolet GMC MOST Trucks 2014-2017
Metra 70-2057 Amp Bypass Harness for Select Chevrolet GMC MOST Trucks 2014-2017
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Metra 70-2057 is a factory amplifier bypass wiring harness for select Chevrolet and GMC trucks with MOST amplifier systems from 2014-2017. It bypasses the compatible factory amplifier during aftermarket radio installation while connecting at the original radio and amplifier locations.
At a Glance
- Factory amplifier bypass harness for select Chevrolet and GMC trucks
- Designed for select GM vehicles with a MOST amplifier
- Plugs into the original radio connectors and the factory amplifier connection
- 72-inch harness length supports routing to the amplifier location
- Color-coded leads connect to the aftermarket radio without cutting factory connectors
System / Wiring Notes
- Factory subwoofer is not retained in select vehicles
- Designed for compatible MOST amplifier applications only
- Additional installation parts and interfaces may be required depending on vehicle equipment
- Verify amplifier type and current Metra fitment before installation
Exact Vehicle Compatibility
Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.
| Make | Model | Years | Factory Equipment / Qualifier |
|---|---|---|---|
| Chevrolet | Colorado | 2015-2018 | With 8" radio, RPO code: IO5/IO6; Factory amplified audio system |
| Chevrolet | Silverado 1500 | 2014 | With 8" radio, RPO code: IO5 or I06; Factory amplified audio system |
| Chevrolet | Silverado 1500 LD, 2500 HD, 3500 HD | 2019 | With 8" radio, RPO code: IO5 or I06; Factory amplified audio system |
| Chevrolet | Silverado 1500, 2500 HD, 3500 HD | 2015-2018 | With 8" radio, RPO code: IO5 or I06; Factory amplified audio system |
| Chevrolet | Suburban | 2015-2020 | Factory amplified audio system |
| Chevrolet | Tahoe | 2015-2020 | Factory amplified audio system |
| GMC | Canyon | 2015-2018 | With 8" radio, RPO code: IO5/IO6; Factory amplified audio system |
| GMC | Sierra 1500 | 2014 | With 8" radio, RPO code: IO5 or I06; Factory amplified audio system |
| GMC | Sierra 1500 Limited, 2500 HD, 3500 HD | 2019 | With 8" radio, RPO code: IO5 or I06; Factory amplified audio system |
| GMC | Sierra 1500, 2500 HD, 3500 HD | 2015-2018 | With 8" radio, RPO code: IO5 or I06; Factory amplified audio system |
| GMC | Yukon Denali, Yukon XL Denali | 2015-2020 | Factory amplified audio system |
| GMC | Yukon, Yukon XL | 2015-2020 | Factory amplified audio system |
Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.
Installation Notes
- Confirm exact vehicle fitment, factory audio system, and radio connector before installation
- Additional parts such as a dash kit, antenna adapter, steering wheel control interface, or data interface may be required for a complete installation
- Professional installation is recommended for best results
- Check current manufacturer instructions and vehicle application data before installation
What’s in the Box
- Metra 70-2057 amplifier bypass harness
Technical Specifications
- Brand: Metra
- Model: 70-2057
- Product Type: Amplifier bypass harness
- Application: Select Chevrolet and GMC truck aftermarket radio installations with MOST factory amplifier bypass
- Compatibility Type: Vehicle-specific
- Factory System: MOST amplifier applications
- Harness Length: 72 inches
- Factory Subwoofer Note: Not retained in select vehicles
Identifiers & Packaging
- MPN: 70-2057
- UPC: 086429305599
- Sold As: Each
- Included Components: Amplifier bypass harness
Why Buy From MCOR Automotive
- Authorized retailer for the brands we sell
- Specialists in vehicle audio integration, radio replacement parts, and installation accessories
- 22+ years of professional automotive electronics experience
- Expert support for compatibility verification and proper setup
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