hi i have fitted dcc chips and sound chips and speakers to dcc ready stuff but looking for help with a Bachmann 45 xx without a ddc socket, it has a leaflet in the box from Bachmann about dcc fitting ir remove the two capacitors and solder the red and black wire to position to 4 and 3 grey and orange to 1 and to on the pcb board etc but what about the other colour wires on the decoder once the 8 pin socket is snipped off i know the two brown are for the speaker but what about the blue yellow etc do just tape them off out the way ??