Home Car Radio Harness Metra Axxess ANC Bypass Harness for Select 2016-2020 GM a…

Metra - Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles - Multi

Price range: $24.99
Brand: Metra
Category: Car Radio Harness
A Metra car axxess anc bypass harness (for Select 2016-2020 GM and Cadillac vehicles; Multi).
PQS: 87 (computed 2026-03-14 07:04:47.681174+00:00)
GTIN-14: 00086429431168
Metra - Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles - Multi

Key specs

A human-friendly subset of specs (non-null)
Accessory
Axxess ANC Bypass Harness
Compatibility
Select 2016-2020 GM and Cadillac vehicles
Type
Harness
Included
Wiring harness
Finish
Multi

Compatibility

Best-effort fitment (not exhaustive)
  • 2016–2020 GM
  • 2016–2020 Cadillac Vehicles

Included in the box

  • Wiring harness

Offers

Retailer SKU Price Stock Offer Last seen
Best Buy 6578204 24.99 USD In stock View offer → 2026-03-14 03:26:55.610273+00:00

Recent price history (50)

Retailer Price Stock Seen at
bestbuy 24.99 USD In stock 2026-03-14 03:26:55.610273+00:00
bestbuy 24.99 USD In stock 2026-03-13 03:36:45.731189+00:00
bestbuy 24.99 USD In stock 2026-03-12 03:26:46.581086+00:00
bestbuy 24.99 USD In stock 2026-03-11 03:25:00.336724+00:00
bestbuy 24.99 USD In stock 2026-03-10 03:34:06.969965+00:00
bestbuy 24.99 USD In stock 2026-03-09 03:34:32.244012+00:00
bestbuy 24.99 USD In stock 2026-03-06 06:31:45.852268+00:00
bestbuy 24.99 USD In stock 2026-03-03 02:21:52.148336+00:00
bestbuy 24.99 USD In stock 2026-03-02 08:45:34.738345+00:00

Full specs

Show full spec table
TypeHarness
CompatibilitySelect 2016-2020 GM and Cadillac vehicles
FinishMulti
Dimensions1.18 x 5 x ? in
Reconciled at2026-03-06 10:56:32.254648+00:00
Canonical JSON (expand)
{
  "os": {
    "name": null
  },
  "car": {
    "type": "Harness",
    "finish": "Multi",
    "din_type": null,
    "included": [
      "Wiring harness"
    ],
    "material": null,
    "compatibility": "Select 2016-2020 GM and Cadillac vehicles",
    "included_trim": null,
    "included_screws": null,
    "included_harness": true,
    "included_adapters": null,
    "included_brackets": null,
    "compatibility_make": null,
    "compatibility_model": null,
    "compatibility_years": "2016-2020",
    "included_connectors": null,
    "included_instructions": null,
    "retains_factory_features": null
  },
  "cpu": {
    "cores": null,
    "tdp_w": null,
    "socket": null,
    "threads": null,
    "npu_tops": null,
    "cpu_model": null,
    "lithography": null,
    "base_clock_ghz": null,
    "boost_clock_ghz": null
  },
  "gpu": {
    "tdp_w": null,
    "chipset": null,
    "outputs": null,
    "vram_gb": null,
    "gpu_type": null,
    "gpu_model": null,
    "vram_type": null,
    "base_clock_mhz": null,
    "boost_clock_mhz": null
  },
  "core": {
    "title": "Metra - Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles - Multi",
    "seo_title": "Metra ANC-GMH3 (2016)"
  },
  "lens": {
    "mount": null,
    "weight": null,
    "focal_length": null,
    "max_aperture": null,
    "stabilization": null
  },
  "audio": {
    "driver": null,
    "wireless": null,
    "technology": null,
    "impedance_ohms": null,
    "speakers_count": null,
    "wireless_codecs": null,
    "hi_res_certified": null,
    "frequency_response": null
  },
  "brand": "Metra",
  "build": {
    "screen_glass": null,
    "chassis_material": null
  },
  "color": null,
  "extra": {},
  "model": "ANC-GMH3",
  "ports": {
    "hdmi": null,
    "usb_a": null,
    "usb_c": null,
    "sd_card": null,
    "summary": null,
    "ethernet": null,
    "sim_slot": null,
    "displayport": null,
    "thunderbolt": null,
    "headphone_jack": null
  },
  "power": {
    "psu_watts": null
  },
  "camera": {
    "mount": null,
    "sensor": null,
    "weight": null,
    "iso_range": null,
    "megapixels": null,
    "rear_megapixels": null,
    "front_megapixels": null,
    "video_resolution": null,
    "windows_hello_ir": null
  },
  "gtin14": "00086429431168",
  "images": [
    "https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6578/6578204_rd.jpg"
  ],
  "memory": {
    "ram_gb": null,
    "channels": null,
    "ram_type": null,
    "speed_mhz": null
  },
  "series": null,
  "battery": {
    "life_hours": null,
    "capacity_wh": null,
    "capacity_mah": null
  },
  "display": {
    "panel_type": null,
    "resolution": null,
    "color_gamut": null,
    "hdr_formats": null,
    "touch_screen": null,
    "screen_size_in": null,
    "brightness_nits": null,
    "refresh_rate_hz": null,
    "response_time_ms": null,
    "pantone_validated": null
  },
  "release": {
    "year": 2016
  },
  "storage": {
    "interface": null,
    "nand_type": null,
    "read_speed": null,
    "capacity_gb": null,
    "form_factor": null,
    "write_speed": null,
    "endurance_tbw": null,
    "storage_capacity_gb": null
  },
  "category": "car_radio_harness",
  "features": {
    "webcam": null,
    "windows_ai": null,
    "form_factor": null,
    "software_perks": null,
    "backlit_keyboard": null,
    "convertible_2in1": null,
    "fingerprint_reader": null
  },
  "physical": {
    "depth_in": null,
    "width_in": 5.0,
    "height_in": 1.18,
    "weight_kg": 0.02,
    "dimensions_in": "1.18 x 5 x ? in"
  },
  "thermals": {
    "cooling_type": null,
    "thermal_interface": null
  },
  "warranty": {
    "labor": "Not available",
    "parts": "1 Year"
  },
  "wearable": {
    "ecg": null,
    "gps": null,
    "spo2": null,
    "skin_temp": null,
    "heart_rate": null,
    "display_type": null,
    "nfc_payments": null,
    "compatibility": null,
    "music_storage": null,
    "sleep_tracking": null,
    "display_size_in": null,
    "battery_life_days": null,
    "stress_monitoring": null,
    "smart_notifications": null,
    "workout_modes_count": null,
    "water_resistance_atm": null
  },
  "appliance": {
    "btu": null,
    "eer": null,
    "ceer": null,
    "type": null,
    "modes": null,
    "smart": null,
    "steam": null,
    "zones": null,
    "finish": null,
    "air_fry": null,
    "burners": null,
    "voltage": null,
    "inverter": null,
    "noise_db": null,
    "fuel_type": null,
    "ice_maker": null,
    "wattage_w": null,
    "convection": null,
    "depth_type": null,
    "door_alarm": null,
    "fan_speeds": null,
    "frost_free": null,
    "rack_count": null,
    "sensor_dry": null,
    "third_rack": null,
    "airflow_cfm": null,
    "energy_star": null,
    "filter_type": null,
    "glide_racks": null,
    "soil_sensor": null,
    "broiler_type": null,
    "cycles_count": null,
    "defrost_type": null,
    "garage_ready": null,
    "tub_material": null,
    "venting_type": null,
    "air_direction": null,
    "baskets_count": null,
    "capacity_cuft": null,
    "cleaning_type": null,
    "drum_material": null,
    "drying_system": null,
    "energy_rating": null,
    "lighting_type": null,
    "mounting_type": null,
    "shelves_count": null,
    "cooling_system": null,
    "dimensions_hwd": null,
    "interior_light": null,
    "place_settings": null,
    "room_size_sqft": null,
    "sanitize_cycle": null,
    "sensor_cooking": null,
    "shelf_material": null,
    "spin_speed_rpm": null,
    "turntable_size": null,
    "bottle_capacity": null,
    "convection_type": null,
    "water_dispenser": null,
    "interior_coating": null,
    "annual_energy_kwh": null,
    "cutout_dimensions": null,
    "humidity_crispers": null,
    "temperature_range": null,
    "wash_cycles_count": null,
    "oven_capacity_cuft": null,
    "water_level_control": null,
    "agitator_or_impeller": null,
    "capacity_fridge_cuft": null,
    "daily_production_lbs": null,
    "independent_controls": null,
    "capacity_freezer_cuft": null,
    "lower_oven_capacity_cuft": null,
    "upper_oven_capacity_cuft": null
  },
  "networking": {
    "ports": null,
    "cellular": null,
    "band_count": null,
    "throughput": null,
    "wifi_standard": null,
    "ethernet_ports": null
  },
  "peripheral": {
    "dpi": null,
    "rgb": null,
    "platform": null,
    "driver_mm": null,
    "vibration": null,
    "microphone": null,
    "sensor_type": null,
    "switch_type": null,
    "connectivity": null
  },
  "smart_home": {
    "learning": null,
    "resolution": null,
    "connectivity": null,
    "night_vision": null,
    "power_source": null,
    "compatibility": null,
    "chime_included": null
  },
  "certifications": {
    "energy_star": null,
    "epeat_level": null
  },
  "schema_version": 1
}
Debug data (expand)
Raw title Metra - Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles - Multi
Raw brandMetra
Raw categoryBest Buy > Car Electronics & GPS > Car Installation Parts & Accessories > Deck Accessories & Installation Parts > Deck Harnesses > Wiring Harnesses
Canonical highlights (non-null)
car.type Harness
car.finish Multi
car.included[0] Wiring harness
car.compatibility Select 2016-2020 GM and Cadillac vehicles
car.included_harness True
car.compatibility_years 2016-2020
core.title Metra - Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles - Multi
core.seo_title Metra ANC-GMH3 (2016)
brand Metra
model ANC-GMH3
gtin14 00086429431168
images[0] https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6578/6578204_rd.jpg
release.year 2016
category car_radio_harness
physical.width_in 5.0
physical.height_in 1.18
physical.weight_kg 0.02
physical.dimensions_in 1.18 x 5 x ? in
warranty.labor Not available
warranty.parts 1 Year
schema_version 1
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
{
  "sku": 6578204,
  "upc": "086429431168",
  "url": "https://api.bestbuy.com/click/-/6578204/pdp",
  "name": "Metra - Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles - Multi",
  "image": "https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6578/6578204_rd.jpg",
  "details": [
    {
      "name": "Brand",
      "value": "Metra",
      "values": [
        "Metra"
      ]
    },
    {
      "name": "Model Number",
      "value": "ANC-GMH3",
      "values": [
        "ANC-GMH3"
      ]
    },
    {
      "name": "Product Name",
      "value": "Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles",
      "values": [
        "Axxess ANC Bypass Harness for Select 2016-2020 GM and Cadillac Vehicles"
      ]
    },
    {
      "name": "Color",
      "value": "Multi",
      "values": [
        "Multi"
      ]
    },
    {
      "name": "Vehicle Compatibility",
      "value": "Select 2016-2020 GM and Cadillac vehicles",
      "values": [
        "Select 2016-2020 GM and Cadillac vehicles"
      ]
    },
    {
      "name": "Product Compatibility",
      "value": "Audio/Video",
      "values": [
        "Audio/Video"
      ]
    },
    {
      "name": "Product Type",
      "value": "Harness",
      "values": [
        "Harness"
      ]
    },
    {
      "name": "Harness Type",
      "value": "Audio/Video",
      "values": [
        "Audio/Video"
      ]
    },
    {
      "name": "Product Height",
      "value": "1.18 inches",
      "values": [
        "1.18 inches"
      ]
    },
    {
      "name": "Product Length",
      "value": "11 inches",
      "values": [
        "11 inches"
      ]
    },
    {
      "name": "Product Width",
      "value": "5 inches",
      "values": [
        "5 inches"
      ]
    },
    {
      "name": "Product Weight",
      "value": "0.04 pounds",
      "values": [
        "0.04 pounds"
      ]
    },
    {
      "name": "Warranty - Parts",
      "value": "1 year",
      "values": [
        "1 year"
      ]
    },
    {
      "name": "Warranty - Labor",
      "value": "Not available",
      "values": [
        "Not available"
      ]
    }
  ],
  "features": [
    {
      "feature": "Compatible with select 2016-2020 GM and Cadillac vehicles\nSolves common problems for installers adding subwoofers or aftermarket speakers to vehicles with active noise cancellation (ANC)."
    },
    {
      "feature": "Bypasses factory ANC microphones\nWhen a subwoofer is added, the ANC microphones can start malfunctioning and cause noise issues in the vehicle. This bypass harness is designed to prevent these issues while giving installers more flexibility in their audio system design."
    },
    {
      "feature": "Quality connectors\nMaintain proper communication between audio equipment and the ANC system."
    }
  ],
  "condition": "New",
  "salePrice": 24.99,
  "categoryPath": [
    {
      "id": "cat00000",
      "name": "Best Buy"
    },
    {
      "id": "abcat0300000",
      "name": "Car Electronics & GPS"
    },
    {
      "id": "pcmcat165900050023",
      "name": "Car Installation Parts & Accessories"
    },
    {
      "id": "pcmcat165900050031",
      "name": "Deck Accessories & Installation Parts"
    },
    {
      "id": "pcmcat165900050034",
      "name": "Deck Harnesses"
    },
    {
      "id": "pcmcat1708457172069",
      "name": "Wiring Harnesses"
    }
  ],
  "manufacturer": "Metra",
  "regularPrice": 24.99,
  "shippingCost": 5.49,
  "longDescription": "This AXXESS bypass harness is designed to solve common problems for installers adding subwoofers or aftermarket speakers to vehicles with active noise cancellation (ANC). The harness maintains proper communication between audio equipment and the ANC system, giving listeners full control over their music without sound distortion, interference, or conflict between devices.",
  "shortDescription": null,
  "onlineAvailability": true,
  "inStoreAvailability": true
}
Newegg raw specs
No Newegg raw specs saved for this product yet.