Connector X2377 is a hub cap connector inside that wire bundle. So unwrap the tape and locate the wire bundle with a rubber cap. There should be 7 red/yellow and one violet wire on the same cap.

https://www.newtis.info/tisv2/a/en/e...200806/p6BEsjg

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey