Metra 70-1857 Tuner Bypass Bose Amp Harness for Cadillac Chevrolet 1987-1996

Metra 70-1857 is a tuner bypass and Bose amplifier integration harness for select amplified Cadillac and Chevrolet vehicles from 1987-1996. It eliminates the factory tuner brain and interfaces with the Bose amplifier so an aftermarket radio can be installed.

Key Features

• Tuner bypass and Bose amplifier integration harness
• Designed for select amplified Cadillac and Chevrolet models
• Eliminates the factory tuner brain in compatible applications
• Interfaces into the Bose amplifier for aftermarket radio installation
• 204-inch harness length supports routing to the tuner/amplifier location

System / Wiring Notes

• Designed for select amplified models only
• Factory Bose amplifier integration depends on compatible vehicle equipment
• Verify factory tuner location and amplifier system before installation

Vehicle Compatibility

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 70-1857 tuner bypass/Bose amplifier integration harness

Technical Specifications

• Brand: Metra
• Model: 70-1857
• Product Type: Tuner bypass harness
• Application: Select Cadillac and Chevrolet amplified aftermarket radio installations requiring tuner bypass and Bose amplifier integration
• Compatibility Type: Vehicle-specific
• Factory Feature: Tuner bypass and Bose amplifier integration
• Harness Length: 204 inches
• Audio System: Select amplified models

Identifiers & Packaging

• MPN: 70-1857
• UPC: 86429087174
• Sold As: Each
• Included Components: Tuner bypass and Bose amplifier integration 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