Latest Model
  • Full cable — red plug body
  • Female connector close-up
  • Red male plug close-up
  • Harris Race Radios to MRTC in-car harness adapter cable 250mm — full cable view
  • Harris Race Radios to MRTC adapter cable overhead view showing both connectors
  • Harris Race Radios female barrel connector end of MRTC adapter cable close-up
  • MRTC male 3.5mm jack connector end of Harris Race Radios adapter cable close-up
  • Overhead curve red plug
1 8

Harris Race Radios Helmet Kit to MRTC In-Car Radio Harness Adapter Cable — 250mm

Harris Race Radios // IP-MRTC-STP-ADPT

$199.00 NZD Exc. GST
$199.00 NZD Exc. GST Sale
Sold out

Need Help?

You can contact us via our chat box on our website, phone or email.

Aaron Harris: +64 27 449 9654 & aaron@harriscomms.co.nz

Rex Harris: +64 21 682 912 & rex@raceradios.co.nz

Shipping & Delivery

New Zealand:

  • Standard shipping is $14 NZD, including helmets. Any separate rates for seats or trolleys are shown at checkout.
  • Delivered by NZ Couriers or Post Haste.
  • Delivery time: 1-7 days.
  • Free local pickup is available from 15 Michael Road, Paraparaumu 5032.

Australia:

  • Shipping is calculated from the combined estimated shipping weight of the items in your basket. Your rate is shown in AUD at checkout.
  • Orders over 20kg require a separately priced freight quote before purchase. Please contact HRR.
  • OMP seats and trolleys are available for New Zealand delivery only.
  • Delivered by Asendia, DHL Express or FedEx.
  • Delivery time: 7-14 days.

Other countries: For shipping to any other country, please get in touch for a quote.

Secure Payment Methods

We accept Apple & Google Pay, Debit or Credit Cards, and PayPal for easy and secure transactions.

Exclusively for our New Zealand customers, we offer Afterpay and Bank Transfer.

The Harris Race Radios Helmet Kit to MRTC In-Car Radio Harness Adapter Cable allows a Harris Race Radios helmet intercom kit to be connected directly to an MRTC in-car 2-way radio wiring harness. At 250mm, this short adapter provides a clean, low-profile connection between your Harris Race Radios helmet setup and an MRTC-wired in-car radio system.

Key Features

  • Harris Race Radios helmet kit compatible — connects your Harris Race Radios helmet intercom kit to an MRTC in-car harness
  • MRTC in-car harness compatible — plugs directly into MRTC 2-way radio wiring harnesses
  • 250mm cable length — short, clean installation with minimal cable run
  • NZ stock — held locally for fast dispatch across NZ and AU

Frequently Asked Questions

What does this cable connect?
This adapter allows a Harris Race Radios helmet intercom kit to be connected to an MRTC in-car 2-way radio wiring harness.
What length is this cable?
Approximately 250mm — a short adapter designed for minimal cable run between the helmet connector and the in-car harness.
Is this compatible with all MRTC in-car harnesses?
This adapter is designed for standard MRTC in-car 2-way radio wiring harnesses. Contact us if you are unsure about compatibility with your specific installation.
Do you ship to Australia?
Yes. Harris Race Radios holds NZ stock and ships to Australia with tracked courier.
Can you help with installation or compatibility questions?
Yes. Rex Harris handles all radio and electronics integration. Contact us before ordering if you need guidance on compatibility with your specific setup.

Why Harris Race Radios

Harris Race Radios designs and supplies in-car radio harness systems and helmet intercom kits used at the highest levels of NZ and AU motorsport.

  • Rex Harris — qualified Radio Telecommunications Engineer, Approved Radio Certifier, RSM ARC127 and ARE127, motorsport radio experience since 1975 starting at the Marlboro Series Grand Prix. Rex designs, installs, and supports all Harris Race Radios in-car systems and adapter cables.
  • Aaron Harris — active racing driver and race engineer. Barcelona 24 Hour 1st in class 2013, Bathurst 1000 and 12 Hour competitor, BMW Race Driver Series Champion 2011. Race engineer for Earl Bamber Motorsport, TekworkX, Matt Stone Racing, Porsche Carrera Cup Australia/Asia-Pacific/NZ. MotorSport NZ Licence Examiner.

All adapter cables are genuine Harris Race Radios products, built and tested for motorsport use.

View full details