70-1856

The Metra 70-1856 is a tuner bypass harness designed for select 1990–1996 Cadillac and Chevrolet vehicles with non-amplified factory audio systems. This harness allows installation of an aftermarket radio by bypassing the factory remote tuner module (“tuner brain”) commonly used in older GM vehicles. Unlike the 70-1857, the 70-1856 is intended for non-Bose/non-amplified systems.

Features & Highlights

• Designed for select GM non-amplified systems
• Bypasses factory remote tuner module
• Allows aftermarket radio installation
• 204-inch extended harness length
• Plug-and-play style integration
• Retains factory speaker wiring
• Designed specifically for non-Bose applications
• Simplifies aftermarket radio upgrades in older GM vehicles

Specifications

Compatible Vehicle Applications

• Cadillac Allanté
• Cadillac Eldorado
• Cadillac Seville
• Cadillac DeVille
• Cadillac Fleetwood
• Chevrolet Corvette