Metra tuner relocation and Bose integration harness

Metra ★ 3.7/5 · ItemOracle Score Budget

$33 USD
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Metra 70-1857 Tuner Relocation and Bose Integration Harness for Select GM Vehicles

Harness to bypass factory tuner and interface with Bose amplifier for aftermarket radios. Includes 17 ft wiring and real-world tested compatibility. Customers cite easy installation and good quality, with some noting noise and length mixed feedback

Highlights

  • tuner bypass and bose integration
  • 17 ft harness included
  • real-world tested compatibility

Pros

  • easy installation
  • good build quality
  • works with Bose amplifier integration
  • long 17 ft length
  • tested for real-world use

Cons

  • mixed feedback on length
  • noise level can be significant

Best For

  • installing aftermarket radio in select GM vehicles
  • bypassing factory tuner for Bose system
  • relocating tuner wiring for clean installation
  • integrating Bose amp with new head unit
  • vehicle audio upgrades for Cadillac/Chevrolet models
  • simple harness-based installation projects

Features

  • Tuner bypass and Bose amplifier integration to retrofit aftermarkets
  • 17ft (204in) long harness with 21-pin connector and antenna extension
  • Relocates tuner brain and preserves factory Bose system compatibility
  • Designed for Cadillac Allante, Deville, Eldorado, Seville, Fleetwood; Corvette compatibility
  • Allows installation of aftermarket radio using existing factory wiring and connectors

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