06 C6 - Added Steering Wheel Controls, No Response?
The basics:
2006 C6 A6 (BOSE/ No Nav/ no radio controls)
installed OEM Navigation PN: Denso 15791220 468100-5600
and had the Nav flashed to car (~6 months ago)
Added a new 2012 steering wheel w/ radio controls
added new 2007+ Clock Spring
followed guide posted here, essentially just adding 3 wires from the clock spring to the back of the radio
https://www.corvetteforum.com/forums...s-upgrade.html
I followed the guide quite closely and, despite this, I can't seem to get the steering wheel controls working! As well as the button lights are working but don't shut off? I was fairly certain I tapped into the lamp control on the HVAC as the guide said.
I wasn't sure if I had to get the Nav re-flashed or updated in order to enable the controls?
It is functioning as it was, and is happily disobeying my wheel controls

I can't imagine the pinouts being different for any of the connectors by year.
Any advice?
Last edited by VetteofSD; Jan 27, 2016 at 04:14 AM.
I'm pretty sure that the Nav unit had to come from a car that originally had steering wheel controls in order for it to recognize the buttons in the new car.
Last edited by VetteofSD; Jan 27, 2016 at 07:23 PM.
Unplug the big radio plug, put a meter on ohms and measure between pins A6 & A7. You may need to straighten out a paper clip and put the leads on them. Push the Volume Up button, meter should read about 1270 ohms.
If that's right, maybe the radio isn't putting out +12v on A6. To check that you have to find the purple/white wire in the clockspring while the radio is on.
Unplug the big radio plug, put a meter on ohms and measure between pins A6 & A7. You may need to straighten out a paper clip and put the leads on them. Push the Volume Up button, meter should read about 1270 ohms.
If that's right, maybe the radio isn't putting out +12v on A6. To check that you have to find the purple/white wire in the clockspring while the radio is on.
Any other ideas? At this point it very well could be the navigation unit but I was so certain I had the right one!
Also thank you very much for the help by the way! Part of what makes this forum great
I used the rp5-gm11When i was installing the new wheel with the 07+ clockspring. Instead of buying a new harness i spliced the 3(red,brown,purple) radio wires aside to tackle steering wheel controls later.
Set the pac unit to 7 for pionner and hooked up the 3.5 to the HU
Called pac customer service and a techinician told me to connect the 3 wires to these wires as follows.
At the pac connector connected to the 24 pin car plug. I tapped into these wire colors
Brown SW to 12v i choose yellow in my car
Red SW to green/white on pac unit
Purple SW to red on pac unit
All is working no further programming needed.
Hope this info helps to all trying to upgrade their wheels to 07+ wheels
Last edited by Tj25; Apr 19, 2018 at 11:57 PM.
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