Metra - 70-2057 - GM MOST(r) 2014-Up Amplifier Bypass Harness

METRA – 70-2057

• SKU: 70-2057

• Model: 70-2057

• Product Type: Amplifier Bypass Harness

• Application: GM MOST® Systems (2014 and up)

Description:
Metra 70-2057 amplifier bypass harness designed for select GM vehicles equipped with MOST® factory amplifier systems from 2014 and later. Allows the integration of aftermarket audio head units or audio systems by bypassing the factory MOST® amplifier while retaining proper wiring and signal integrity.

FEATURES

• Designed specifically for GM vehicles with MOST® factory audio systems

• Bypasses the factory MOST® amplifier for aftermarket audio integration

• Maintains vehicle power, ground, speaker, and signal circuits

• Plug-and-play harness with vehicle-specific connectors

• Enables aftermarket head unit or amplifier connection without cutting factory wiring

• Supports retention of OEM features where applicable

• Automotive-grade harness and connectors for long-term reliability

SPECIFICATIONS

• Harness Type: Amplifier bypass harness

• System Compatibility: GM vehicles with MOST® networks (2014 and newer)

• Connectors: OEM vehicle radio/amp connector to aftermarket interface

• Purpose: Bypass factory MOST® amplifier for aftermarket audio integration

• Retained Circuits: Power, ground, speaker outputs (non-MOST® signal path)

• Wire Gauge: Automotive standard (varies by circuit)

• Insulation: OEM-grade automotive harness insulation

• Installation: Dash / factory radio harness area

APPLICATION

• Vehicle Make: General Motors (GM)

• Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024+

• Factory System: MOST® audio network equipped vehicles

• Location: Behind dash / radio harness area for amp bypass