Need help figuring out wiring.

[Russmov]

So, I'm in the process of adding an aftermarket blind spot monitor and need to know which wires to tap in to. The instructions say to tap into the ACC 12V and also the rear left turn signal and rear right turn signal. Also, need to tap positive parking light.
I have looked on newTIS but I still don't know which I need.
Also, wondering if it makes sense to use an add-a-fuse.
Any help would be great.

[Russmov]

Any ideas? I'm lost lol

[turboawd]

Have you checked your fuse diagram? You can get power there. Though I'm not sure if the lights are individually fused. May have to tap off the light module. Or if you're mounting this unit in the rear, tap into the rear light wiring.

[Russmov]

Originally Posted by turboawd

Have you checked your fuse diagram? You can get power there. Though I'm not sure if the lights are individually fused. May have to tap off the light module. Or if you're mounting this unit in the rear, tap into the rear light wiring.

Yeah I was going to just tap straight into the tail light blinker wire, but can't tell for sure which one it is. While the diagrams look straightforward to some, it looks like a completely different language to me. Having a difficult time determining which wires are correct.

[CatalinP]

I think you are playing with fire there... The lights module on BMW is very sensitive...

[Russmov]

Originally Posted by CatalinP

I think you are playing with fire there... The lights module on BMW is very sensitive...

Yes you may be correct, I know our vehicles can be temperamental.

[turboawd]

You have an electrical probe like this?
https://www.amazon.com/dp/B01CRKCMF6/

Turn flasher on and pierce wire with tip to see which one flashes.

[Russmov]

Originally Posted by turboawd

You have an electrical probe like this?
https://www.amazon.com/dp/B01CRKCMF6/

Turn flasher on and pierce wire with tip to see which one flashes.

Thanks! Gonna go and get one now actually lol