arnie cutler Posted February 1, 2010 Report Share Posted February 1, 2010 Purchased an Audi a4 cabrio last month (03 plate) and amtyring to upgrade SAT NAV from rns d to rns e. Run into a few problems and need some help. Unit came with a harness so it will power on and off when using on /off button but not with ignition key. Also lights will not come on when lights are turned on. Apart from this it plays CDs radio and navigates. Any help with what i need to do will be great. Link to comment Share on other sites More sharing options...
shark_90 Posted February 1, 2010 Report Share Posted February 1, 2010 Sounds like the CAN bus wires aren't connected properly. Link to comment Share on other sites More sharing options...
arnie cutler Posted February 1, 2010 Author Report Share Posted February 1, 2010 Figured it would be wiring. Does any one know which CAN wires? Link to comment Share on other sites More sharing options...
Cockney Boy Posted February 1, 2010 Report Share Posted February 1, 2010 The harness maybe be your problem. Can you tell us if your car has Bose/Tel etc as you may need to re-pin some of the wires. and like Shark has said the CAN L & H wires maybe round the wrong way Purchased an Audi a4 cabrio last month (03 plate) and amtyring to upgrade SAT NAV from rns d to rns e. Run into a few problems and need some help. Unit came with a harness so it will power on and off when using on /off button but not with ignition key. Also lights will not come on when lights are turned on. Apart from this it plays CDs radio and navigates. Any help with what i need to do will be great. Link to comment Share on other sites More sharing options...
arnie cutler Posted February 1, 2010 Author Report Share Posted February 1, 2010 car has Bose. Not even sure CAN L and H wires are connected .Read on here i may have to run them from some where behind instument cluster but so many different upgrades it is a bit hard to know which one is corrctfor my car Link to comment Share on other sites More sharing options...
craigyb Posted February 1, 2010 Report Share Posted February 1, 2010 In the A4 you need to find the can gateway/TMC module and join the 4 can wires high to high and low to low. These will then bridge the gap between the old RNS-D can and the cluster can. The TMC module is located at the back of the car behind the boot trim. Then at the back of the RNS-E you will find a 26 pin connector used on the RNS-D, pins 13 & 26 are your can wires and these need to connect to pins 9 & 10 of the RNS-E. Check teh wiring diagram on the RNS-D & E for the high and low pins. Link to comment Share on other sites More sharing options...
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