Metra
Metra 70-1856 Tuner Bypass Harness for Cadillac Chevrolet 1992-1996
Metra 70-1856 Tuner Bypass Harness for Cadillac Chevrolet 1992-1996
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Metra 70-1856 is a tuner bypass harness for select non-amplified Cadillac and Chevrolet vehicles from 1992-1996. It bypasses the factory tuner location in compatible non-amplified applications so an aftermarket radio can be installed.
At a Glance
- Tuner bypass harness for select Cadillac and Chevrolet vehicles
- Designed for non-amplified models
- 204-inch harness length supports routing to the tuner location
- Used when the aftermarket radio installation requires bypassing the factory tuner
- Helps avoid cutting factory wiring when used in the correct application
System / Wiring Notes
- Designed for non-amplified models only
- Not intended for Bose or amplified systems unless otherwise specified by current manufacturer data
- Verify factory audio system and tuner configuration 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 | Application |
|---|---|---|---|---|
| Cadillac | Brougham | 1990-1992 | Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Brougham | 1990-1992 | Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | DeVille Concours | 1994-1995 | Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Eldorado | 1992-1993 | column shift; Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Eldorado | 1992-1993 | column shift; Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Eldorado | 1992-1993 | console shift; Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Eldorado | 1992-1993 | console shift; Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Eldorado | 1994-1995 | Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Fleetwood | 1993-1995 | Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Fleetwood | 1993-1995 | Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Fleetwood Brougham | 1990-1992 | Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Fleetwood Brougham | 1990-1992 | Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Seville | 1992-1993 | column shift; Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Seville | 1992-1993 | column shift; Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Seville | 1992-1993 | console shift; Factory amplified audio system | Factory amplifier bypass harness |
| Cadillac | Seville | 1992-1993 | console shift; Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Seville | 1994-1995 | column shift; Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Cadillac | Seville | 1994-1995 | console shift; Non-amplified factory audio system | Radio wiring harness for non-amplified system |
| Chevrolet | Corvette | 1990-1993 | Factory amplified audio system | Factory amplifier bypass harness |
| Chevrolet | Corvette | 1994-1996 | Factory amplified audio system | Factory amplifier bypass harness |
| Chevrolet | Corvette | 1994-1996 | Non-amplified factory audio system | Radio wiring harness for non-amplified 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 70-1856 tuner bypass harness
Technical Specifications
- Brand: Metra
- Model: 70-1856
- Product Type: Tuner bypass harness
- Application: Select non-amplified Cadillac and Chevrolet aftermarket radio installations requiring tuner bypass
- Compatibility Type: Vehicle-specific
- Factory Feature: Tuner bypass
- Harness Length: 204 inches
- Audio System: Non-amplified models
Identifiers & Packaging
- MPN: 70-1856
- UPC: 086429087167
- Sold As: Each
- Included Components: Tuner 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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