Fitting a trip computer

[rowdyboy]

Can anyone tell me what parts i would need to retro fit a trip computer to an A4 3.0 Tdi Avant. I have a multi function steering wheel ( mode and telephone buttons + volume and channel wheels ). Is this an easy job and approx cost. I have RNS-E on order, can it be linked to it?
Cheers

 

[Issac Hunt]

You need a wiper stalk with the trip computer controls on it.

There is no link to the RNS-E.