You need K-line for diagnostic ability and to do soft coding and adaptation, etc.
The stock B5 radio connectors are missing the RFSL signal for reverse gear. The navigation will be more accurate if you run a wire from the backup light circuit to this line on the quadlock, particularly when you had just started the car, put the car in reverse and moved it before the RNS-E had time to lock on to sufficiently many GPS satellites to establish its location.
To get the clock to sync up, you need to connect the infotainment CAN bus from the instrument cluster to the quadlock. This means you’ll need a late production B5 with a digital clock in the instrument cluster. Earlier B5s don’t have an infotainment CAN bus, and the RNS-E will be crippled on the earlier cars, in bad ways.
But that’s not sufficient because the B5 cluster sends out clock info in binary format whereas the RNS-E expects BCD format. The result is incorrect time displayed on the screen. Over 13 years ago a guy named Bjarne created a date/time CAN message translator box that you connect between the cluster and the RNS-E. That box, called Bjarne’s CANGate (not to be confused with other CAN gateways), solved the problem. He sold a bunch of them but has stopped making more around 2010. They are almost impossible to find now.
Last year Stuart M. at
https://rnse.pcbbc.co.uk made available RNS-E firmware updates with many new features. One of those fixes the clock format incompatibility, so a Bjarne CANGate is no longer needed.
Something more basic, though. The RNS-E was never equipped on a B5 from Audi, and any of them from another model will have a front panel shaped wrong for the B5 center console. You’ll need to modify it to make it fit.
You also need to have a double-DIN center console to fit the RNS-E. This means your original factory radio should be the Audi Symphony.
You need to soft code the RNS-E for a A6 4B (C5), which most resembles a B5 8D. The latter is not a configurable option.
If the RNS-E you have is a post-2010 “mk2” unit (with part number ending in 193 instead of 192), then there are additional complications. Ask me if that’s what you have.
Much of this is found in a document written by nsxjr, you should read this as it applies to the B5 too.
http://www.audipages.com/s8/RNS.pdf
If you have more questions, just ask and I’ll try to answer as best as I can.
Here’s my RNS-E in my B5 S4. My installation also integrates ColorMFA, Phatnoise Phatbox, Audi Bluetooth telephone module, Bluetooth audio, and reverse view camera.
Bookmarks