Steering Wheel Radio/Stereo Control for After-market HU

[Iggy888]

Originally Posted by yojabbajabba

Do you think it'd be possible to attach a second set of controls on my steering wheel (on the oppposite side to where they are now) to control the bluetooth Push-to-talk functions of my new head-unit?

Yes, that is what I have done.
The part number I listed earlier is switch controls for both sides of the steering wheel:
Toyota Name: 84250A STEERING PAD SWITCH ASSY.
Toyota Part #: 84250-52010-C0

Note: The last two digits of the part number indicate the colour:
B0 = Silver
C0 = Black

Left side controls = Volume Up/Down, Mode and Seek Up/Down
Ride side controls = Push to Talk, Answer Phone, Hang Up phone

The diagram below shows how both controls are wired together and connect together into one plug that attaches to the top of the spiral cable assembly (clock spring):
ImageFromDB.php.jpeg

Originally Posted by yojabbajabba

I see that you have listed parts above, are they compatible with both sides? and will this affect the airbag mechanism?

The switches will work provided the steering pad cover (air bag) has room for the switches on either side.

If you currently have a narrow steering pad cover (air bag) like the one pictured below then you can add the switches:
Narrow Steering Pad Cover.jpg

However, if your steering pad cover (air bag) is wider like the one below then there is no room for the switches:
Wide Steering Pad Cover.jpg


My car had the wide air bag cover so I had to replace the whole air bag too

Though people sell the narrow steering pad covers on eBay, the steering pad cover is riveted to the air bag.
Drilling into an explosive airbag charge to swap covers did not seem like a good idea