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A 17-foot black antenna extension cable with connectors at both ends, coiled loosely

METRA

METRA 44-EC204 17 ft antenna extension cable car electronics accessory

SKU CH-9K20-YABZZ

A 17-foot universal antenna extension cable with impedance-matching capacitors for aftermarket car stereo installations

  • TypeCar Stereo Add-Ons
  • 17 ft cable extends antenna reach for better signal
  • 204 inch length suits larger vehicle installations
  • 518 cm metric equivalent simplifies cross-reference
  • impedance matching capacitors maintain signal integrity

Universal antenna extension cable for aftermarket

This 17 foot extension cable connects an aftermarket head unit to the vehicle antenna when the factory lead is too short. It is built with impedance matching capacitors to preserve signal quality across the full length. The universal design fits standard antenna connectors on most aftermarket radios.

Signal integrity maintained over 204 inches of cable

Impedance matching capacitors reduce signal loss that normally increases with longer runs. The cable adds no active electronics so it draws no power and generates no heat or noise. Installation simply plugs between the radio and the existing antenna lead.

Highlights

  • 17 ft cable extends antenna reach for better signal
  • 204 inch length suits larger vehicle installations
  • 518 cm metric equivalent simplifies cross-reference
  • impedance matching capacitors maintain signal integrity

Specifications

TypeCar Stereo Add-Ons

Questions about this item

How is the 204-inch cable routed and where do installers most often lose signal?

Run the cable away from ignition wires and the ECU; the step most often missed is keeping the impedance-matching capacitors at the antenna end instead of the radio end, which preserves signal strength.

What part of the 17-foot extension will need replacement first in a daily driver?

The coaxial jacket and the Motorola-style connectors at each end are the wear points; plan to swap the cable if the shielding cracks or the centre pin loosens after several years of vibration.

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