How to connect steering wheel controls to aftermarket radio without adapter

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.

What is SWC 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.

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 blue power antenna wire for?

One thing to note, most head unit wiring harnesses also have a solid blue wire. 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 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.

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How do I connect to Aswc 1?

1) Complete connections to the vehicle and to the aftermarket radio, make sure the 3.5 mm connector is connected. If this is the first time the ASWC is being installed in a vehicle: 2) Turn the ignition on; the LED will start flashing rapidly. 3) After 10 seconds the ASWC will go into the LED feedback mode.

What is a steering wheel control module?

The module that controls the switches “on” or “around/below” the steering wheel is known as the steering column control module. … The functioning switches known as the stalk lever switches are situated to the right and the left sides of the steering column control modules.

What is steering wheel remote input?

Steering wheel audio controls are designed to make it less dangerous to interact with your car radio when you’re driving. The basic idea is that you can use these controls without taking your hands off the steering wheel or taking your eyes off the road.

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.

How do steering wheel controls work?

A small computer is built into the steering wheel controls switches in vehicles that use data communication for the steering wheel audio controls. … When you press a switch on the steering wheel, the computer sends a digital communication to the computer in the radio.

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