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Discussion Starter · #1 ·
Thanks in advance for any help! I heard if you have the wheel, the dealer just activates it. I also heard that the MF wheel is only compatible with the PCM. I only want volume and track changing ability...no phone necessary.

Thanks!
 

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The MF wheel is ONLY compatable with the PCM not the CDR units. The CDR units do not have the software to communucate with the steering wheel electronics.
 

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Really? My 06 Cayenne had a multi-function wheel with a CDR24 and Bose, but no PCM. Perhaps the systems for the Cayman are very different from the other Porsches.
 

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I've seen that the PAC SWIJACK is only certified to work with the Cayenne's, however I saw something else about adding in resistors to the steering wheel's buttons/switches... anyone try this? Or am I going to have to be the guinea pig.

PAC SWI JACK info: http://www.pac-audio.com/swixprogramming/instructions/swix%20locating%20wire.pdf
and SWI-CAN http://www.pac-audio.com/productDetails.aspx?ProductId=208&CategoryID=29

http://www.pac-audio.com/swixprogra...mmSearch=Porsche&Submit2=Search+Vehicles&ID=8

similar trick: http://p-car.com/diy/steeringradio/ <-- good info




Resistor Kit: Some vehicles have a separate wire for each of the steering wheel buttons. Use the resistor kit for steering wheel push buttons that do not already have a resistor network connected to them. The resistor kit includes the following resistors:
  • 47 Ohms (yellow, purple, black, and gold bands)
  • 150 Ohms (brown, green, brown, and gold bands)
  • 560 Ohms (green, blue, brown, and gold bands)
  • 1000 Ohms (brown, black, red, and gold bands)
  • 1500 Ohms (brown, green, red, and gold bands)
Does anyone know how the Cayman's MF steering wheel's controls are sent: (5 options )

1. Negative Control wire.
2. Positive Control wire.
3. 5-volt data Control wire.
4. 12-volt data Control wire.
5. individual pairs per switch
 

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I bought a Carbon Fiber MF steering wheel to replace my stock steering wheel with no buttons.

I swapped the side pieces from my stock wheel over to the new CF steering wheel.

So I have the multifunction buttons and the little piece they're connected to that then in turn connects to the wire harness. I was planning on doing some testing to see if there was anyway of by passing the computer system and using the buttons some other way, but I think I just gave up on it.
 

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I've seen that the PAC SWIJACK is only certified to work with the Cayenne's, however I saw something else about adding in resistors to the steering wheel's buttons/switches... anyone try this? Or am I going to have to be the guinea pig.

PAC SWI JACK info: http://www.pac-audio.com/swixprogramming/instructions/swix%20locating%20wire.pdf
and SWI-CAN Pac-Audio.com Product Details | iPod Integration for your car and More by Pac-Audio - Connecting you to the future

Pac-audio.com Steering Wheel Interface | iPod Integration for your car and More by Pac-Audio - Connecting you to the future

similar trick: http://p-car.com/diy/steeringradio/ <-- good info




Resistor Kit: Some vehicles have a separate wire for each of the steering wheel buttons. Use the resistor kit for steering wheel push buttons that do not already have a resistor network connected to them. The resistor kit includes the following resistors:
  • 47 Ohms (yellow, purple, black, and gold bands)
  • 150 Ohms (brown, green, brown, and gold bands)
  • 560 Ohms (green, blue, brown, and gold bands)
  • 1000 Ohms (brown, black, red, and gold bands)
  • 1500 Ohms (brown, green, red, and gold bands)
Does anyone know how the Cayman's MF steering wheel's controls are sent: (5 options )

1. Negative Control wire.
2. Positive Control wire.
3. 5-volt data Control wire.
4. 12-volt data Control wire.
5. individual pairs per switch

The function buttons are input to the radio via the CAN bus connections C1 and C2. I suspect that means they would fall under catagory 3 or 4 above. I think the appropriate design is interface C1 & C2 to the SWI-CAN and have the SWI-CAN drive the SWI-Jack.
 
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