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Discussion Starter #1
B. EXT control Connector

3 - V-signal
 

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Speed signal in models without speed over CAN (A6 C5, A4 B5, A3 8L, A2). A4 B6 and A3 8P have the speed signal on the CAN-bus and don't need this pin. This pin is only usable on RNS-E units starting with 4B0.
 

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Discussion Starter #3
I noticed that pin was loose earlier, so I fixed it. What happens when that wire is not connected?

Oh, and I have a 4B0 unit.
 

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Without the speed signal your position will only adjust based on GPS data which doesn't work well in tunnels and similar. Your positon will also only adjust every couple of seconds instead of every seconds or less.
 

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Discussion Starter #5
Gotcha!
 
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