Blendmount mirror tap wiring 2018 M4

[Beansy]

Hello collective Hive,

Could anyone definitively let me know which connections to tap into for the mirror tap please? I’d hate to but a multimeter which I’d only use once for 1 minute for this purpose.

So far from researching, I’ve come across:

Connecting red wire to red/white stripe
Black wire to brown wire

Or

Green/white stripe (I’m asuming to red)
Black to brown (ground)

Or

Green/brown (12v)
Brown is ground.

Any help is appreciated,
Beansy.

[TexasF80]

Here you go:

I used the same wires and works perfectly.

[Beansy]

Worked perfectly, thanks!

[chatoyer]

Beansy, How easy was it to pry off the two plastic covers to get access to the wiring harness? Mine seem quite solid, and I’m not keen on breaking them.

[Beansy]

Hi,

Actually very easy to do so. If you watch the above video, he shows you how to do it by hand.

[chatoyer]

Thanks. Yeah, saw that video but when I tried it was quite stiff. Might just have to some muscle into it like Tommy!

[2Slo_F83]

I just came across this video and, Jon is connecting to the small red socket. (Refer to 4:01 seconds) as opposed to the Black one that Tommy used.

Just want to make sure I am not draining the car battery.

Does it matter here? Is it different for 2020 models vs previous years? Sharing pictures of my mirror unit for reference.

Thanks for any help!