How to hook up steering wheel controls to aftermarket radio

Can I use my steering wheel controls with an aftermarket stereo?

This subject is a little complicated, but the basic answer is that, no, you can’t connect steering wheel audio controls to an aftermarket radio without an adapter.

What Are Key 1 and Key 2 wires?

KEY1, KEY2 and GND are the control lines for old style Steering Wheel Controls (SWC). The old style SWC are analogue and appear in very old cars. Cars are no longer made with that system fitted. But, the KEY1 KEY2 analogue has become a standard for manufacturers to use when making connections to an Android Headunit.

Does an aftermarket stereo increase value?

Aftermarket stereo systems are also desirable and value-enhancing options, provided they are installed professionally and don’t cause any problems with the vehicle’s electrical system, says Simms. The same goes for in-car DVD entertainment systems.

What is the auto antenna wire for?

When the ignition of the vehicle is turned off, the remote turn on wire stops transferring voltage and the amplifier turns off. … This wire is typically for power antenna or factory amplifier turn on, do not get this wire confused with the remote turn on wire with the blue/white stripe.

What is the SWC output wire?

SWC Interface Wiring

There are two wires used for steering wheel controls. Each interface (either stand-alone or as part of a multi-function product) has one blue/yellow wire and one black wire with a stereo-type 3.5mm plug. Both wires accomplish the same purpose: transfering the SWC signals to the radio.

What is a B+ wire?

The Red to ACC B+ The B+, which has power at all times, connects to the yellow wire to maintain the memory, and the ACC B+, which has power when the ignition switch is in the Aux and On position, connects to the red so that the radio turns off when the ignition switch is Off.

You might be interested:  How to get fcc radio license

What is SWC connector?

Universal “2 or 3 wire” radio: Connect the steering wheel control wire, referred to as Key-A or SWC-1, to the Brown wire of the connector. … For all other radios: Connect the 3.5mm jack into the jack on the aftermarket radio designated for an external steering wheel control interface.

How does steering wheel radio controls work?

This computer has inputs dedicated to each switch and its function. When you press a switch on the steering wheel, the computer sends a digital communication to the computer in the radio. Often, this communication takes place on the vehicle’s CAN data network.9 мая 2017 г.

How do you check steering wheel controls?


  1. Disconnect the SWC Interface from the plug. …
  2. Place your positive (red) probe on the first Analog Channel. …
  3. Ground the negative probe to the wire you were instructed to ground in the wiring guide. …
  4. Press and hold the Volume Up button on the steering wheel and look for a response on the meter.

8 мая 2020 г.

What is a steering wheel stalk?

The majority of indicator stalks are mounted on the side of the steering column so you can easily operate them without having to release your grip on the steering wheel. Most modern stalks also have a self-cancelling device that is operated by the moving part of the steering column.

Leave a Reply

Your email address will not be published. Required fields are marked *