OK, so the replacements come from AN without any wiring.
Is there a mini-loom or something, the older versions had the wires soldered on.

[Linked Image from andover-<a href='http://ebay.us/EodGjF'>Norton</a>.co.uk]

Or do you need to have the old wires, and fit some slip-on connectors
Or brush up on your soldering skills ...