Not sure of its true name, but I have seen it referred to as a PiggyBack Adapter. One end plugs into the harness H9 socket for the high beam headlight bulb and the other plugs onto the bulb itself and there's 2 more wires that you run to a relay.
I have been able to find them for other sizes but not H9. Has anyone seen them and could point me to someone that sells them online (I'm in Australia)

I have been able to find them for other sizes but not H9. Has anyone seen them and could point me to someone that sells them online (I'm in Australia)

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