I changed the bridge loom and plugs. The loom cost me £22.59 +VAT. It took me about 2 hours to change after unwinding the loom to chase it back to the connecter in the black plastic bit on the bulk head. If it's just the connector to connect the two looms you want, you may need the loom tools from VW/Seat. The part number for the loom is 038971220D, you can try any of the VAG dealers to check if any sell it cheaper.
