04-04-2006, 10:49 AM
I was thinking of putting in the Mot hf850 bluetooth. Would like to rewire the hf850 buttons to use the steering wheels phone buttons.
Does anyone know how/where to get at the wheels phone button electrical connectors in a 2006 A3?
04-04-2006, 05:27 PM
There is no "wire" getting anywhere, is all between the control units. You can either retrofit the Audi kit or forget the buttons.
04-05-2006, 03:53 AM
and can write software to translate the moto functions into CAN.
04-05-2006, 05:27 AM
I am not real familiar with CAN bus hardware. Are their programable controllers out there for cheap?
I haven't opened up an HF850 but since it has buttons. Should be able to use a couple relays for them.
04-05-2006, 08:47 AM
I think it can work. If you can a CAN bus controller, you can read/flip buttons.
The next step is to react to changes in buttons, that means interfacing with hf850. Since there are only a couple buttons on it, should be able to use relays to simulate them being pushed.
The big question is, can you get a CAN controller for cheap.
Another approach would be to use a CAN/Bluetooth interface. I saw one of these, don't know the cost. This approach may take less soldering but be more expensive.
04-05-2006, 12:59 PM
If yes I'm sure you can pick up a CAN controller and build you own circuit for less than $100. If not then you may be out of luck unless you find someone who can. The OEM interface is about $500, please cables, mic, antenna which is another $200. There was one company who was developing an interface for the Parrot to talk with the Audi CAN but IIRC this has never been released for sale.
04-06-2006, 04:11 AM
Not only will you get an easier install... but you'll also get a much better sounding handsfree kit. Ask anyone, the Audi OEM bluetooth sounds better than moto or parrot to the person you're calling.
04-06-2006, 05:37 AM
1. the adventure
2. it's against my personal principals to pay that much
Kind of like when CD players came out in cars, only a $800 option (when you could buy a whole new stereo with integrated cd for $200). The bluetooth hardware costs are very small < $20 in bulk; The Audi $400 charge is just repulsive.
04-21-2006, 06:30 AM
I'm looking at a new A3 Sport DSG, NAV, but no Bluetooth. Any information on how much work it is to retrofit the factory BT Module to this car?
The dealer wants $900 for a local car stereo place to hack a 3rd party BT in. FFC.
04-21-2006, 09:21 AM
Search on navplus.us for A3 and Bluetooth and you will find some answers.