That connector kit (in my eBay listing
) is for a Defender - it's for connecting to TD5 or TDCi front door harnesses, when retro-fitting central locking and electric windows.
The Discovery-2 central locking actuators use 8-way sealed MQS connectors.
This connector is available from Land Rover, as part number
YPC108040 - and costs around £5
However, it's the connector housing only - terminals, wire seals and cavity blanks aren't supplied with it.
I can supply the terminals, wire seals, and cavity blanks you would require - but, without a suitable crimping tool, the terminals are very difficult to crimp properly.
It would be easier to change the front door harness.
From Land Rover, the harness (
YMM110050) is around £330
However, there are new harnesses available on eBay, for just over £22 including UK postage -
http://www.ebay.co.uk/itm/231853802030
This is cheaper than some of the eBay breakers are selling old used door harnesses for.
.