Hello,

Yes that is correct for the turn signal wiring on the M3W side before the original factory harness. Here is an example photo of the passenger side (in the USA) of this car. Also a picture of the original harness before I cut off the H4 connector.

The red and white of the factory harness went to the OEM turn signal
The other 4 wires went to the OEM headlight (but not that red wire in those 4, which was just sitting in the headlight bucket with electrical tape over it)

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