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Hoel Wiring

Kicker KEY200.4 / Subwoofer Plug & Play Combo Harness

Regular price $390.00 USD
Regular price Sale price $390.00 USD
Sale Sold out
Shipping calculated at checkout.
Vehicle Model
Subwoofer Model
Install Kit

Our new standard build time for harnesses is 5 business days.  Your harness will ship quicker than this if order volume is low, but we can't guarantee a shipping date.  We're a small operation, thank you for your patience.  We know you'll love your harness!


The KEY200.4 is back in stock at all major vendors!  Pick up our harness to make installation a breeze!



Plug & Play wiring kit to intercept the High-Level speaker signal from the factory head unit to send to the Kicker KEY200.4 amp, then back to the speakers through the factory wiring.  The combo harness also includes a 20' run for a subwoofer installation.  Select your subwoofer model when ordering.

Please note that this harness does not include a turn on signal.  The auto-on feature of the amp must be used.  A wire for a turn-on signal is included in the subwoofer portion so you don't have to run an extra wire if you need it.  The turn-on wire is not wired into the connector and would need to be manually spliced into an appropriate circuit.

Fully Plug & Play Kits

Select your vehicle model and year for a fully plug & play kit that plugs directly into the factory vehicle wiring and your KEY200.4 amp. Currently compatibility list (harnesses for other models are not available):

  • 2021-2023 Ford Bronco (Base Audio System)
  • 2022-2023 Ford Maverick (Base Audio System)




Installation Location

The KEY200.4 harness portion is approximately 4' long, which allows installation of the unit under the dash on either the driver or the passenger side.

The subwoofer portion of the harness is approximately 20' allowing you to install your subwoofer or subwoofer amp anywhere in the vehicle.


Install Kit Option

The amps must be powered directly from the battery or a portion of the power distribution system.  The current draw is too high to power off an existing circuit in the vehicle.

Don't Include Install Kit

The base harness comes with pigtails for the power and ground wires (12ga TXL) to the KEY200.4.  Choose this option when you have your own power and ground wiring and all fuses and terminals needed for the installation.

Include Install Kit

The install kit option gives you everything you'll need with a pre-installed waterproof fuse and ring terminals for attachment to the battery and chassis.  This option includes a power wire sized to reach the battery, and 3' ground wire in nylon-braided sleeving.  No extra work is required beyond routing the wires and attaching them to the battery and chassis.

Note that the RCA sub input option doesn't include an install kit for the sub, only the KEY200.4


Wire Details

Speaker Leads - 18ga Cross-Link TXL Automotive Wire

Power/Ground Leads - 12ga Cross-Link TXL Automotive Wire (KEY200.4 & Kicker HS10); 8ga Cross-Link TXL Automotive wire (KEY500.1)


Return Policy

Returns are offered within 30 days of purchase. Shipping is non-refundable and the customer is responsible for return shipping costs.