Can-Bus Interface(explain)

I'm not sure I understand your question, but here's a simple explanation.

In the old days, pre 2001, cars were hard wired for all the signals, lighting, ignition, speed pulse etc all on seperate wires to devices in the car such as radios etc. So when you turned the key +12v triggered the device to power on or do whatever it needed to do, switch the lights on and another +12v says, hey the lights are on and the radio turns its lights on.

As electronics advanced in cars it was simpler to send information about the car around on a bus (2 wires) containing all the information and each device could pick off what it needed with simple chips that read the can bus.

So the RNS-E uses the infotainment canbus to receive and send information to and from the car, it receives ignition, lighting, speed etc over can and sends radio station info, nav info to teh cluster etc and controls devices over can such as the TV tuner and telephone interface.

The telephone interface sends information to the cluster and the RNS-E over canbus too.

If your RNS-E cannot see the infotainment canbus, it goes to sleep after 30 mins

most cars have multiple buses for different systems, engine management, entertainment systems and comfort systems.


Hope that helps

Thanks for that,yes i think we did a good job on it,the main prob we found was getting the rns-d to turn of from ignition,when we 1st installed that did not happen,i was having to turn the power switch manually on/off eventually after a lot reading we found the corrrect wire and wired it to the ignition,bingo it worked fine,i supose like all things you learn as you go along,the one thing i found out was Audi dealers here are useless and i mean useless,they havent a clue,anyways it all worked out in the end,the only thing we could figure out was for the sat nav info to come up in the DIS screen(cluster)hopefully when i connect up the RNS-E we wont have the same problem,if we do il cry lol,i purchased my adaptor from Kuftec in Germany,my car is non bose,and i asked for a cd connection also,fone connection etc,but i noticed that there lead has 3 connections on the end of it,i presume one is for cd,one is for fone but whats the 3rd one for??i have also bought a dvd player with adaptors aswell from Germany so im hoping the 3rd connection will do this or does this unit(dvd player)just connect into the video out on the rns-e unit??also with the dvd player where does it get power from,do i have to find a 12v supply for it,hope that makes sense to you,
Thanks
Dec