I have the RNS-E Euro A6 version working in my B5 S4 however it appears it may be missing the speed signal. The unit does not update the positon and recalulate route as fast as I had hoped and I am getting speed singal error code. The wiring adapter I received was made to route the speed signal supplied to my old Symphony I to the RNS-E. I would think this is sufficent correct? if not is there any other way to run the speed signal to it other than from behind the cluster since it already the connection through the harness?