I'm installing an RNS-E into a 2000 S4 with Symphony I, and ran into a problem when trying to relocate the DATA and CLK wires to the CAN H and CAN L wires both to the T32c grey connector behind the instrument cluster and the vehicle connector I behind the head unit. In both cases, there are already wires connected in the CAN H and CAN L terminals. Is my car prewired for CAN BUS? Will my RNS-E work the way it is if I just plug in the connectors? Thanks.