How to buy electrical connectors for Tiger 800 XRX rear light assembly

I would like to get hold of two (one would do) of the connector block used in a Triumph Tiger 800 XRX to attach the rear brake light assembly to the electrical harness. It is a three wire block - one for earth, one for the red running lights and the third for the brake light.

Does anyone know where it is possible to get this exact block from? I been BOTH parts - male/female as I'd like to splice in an extra length of cable (without tinkering with the 'original' elections in any way.

Many thanks.

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