I bought a RSN-E adapter connector of off Topsatnav on Ebay, and theres 2 wires loose on the connector to be connected with scotch lock supplied. Ones for the Bose, and I have connected that into connector III pin 1, so thats ok. The other has a label with Speed/Gala written on it, where do I connect that to? I have a 2004 S4. Many thanks.