HOW TO: Add Digital Rearview Mirror

[vincentw56]

I just read through all 24 pages and it still isn't clear. I have a 2020. If I buy a *NEW* BCM and get it programmed at the dealer, and then I do the rest of this mod (Mirror, CHMSL, FAKRA) will l be able to retain my auto dimming side mirrors?

I can't tell if there are just two ways to do it (USED BCM and jimmy07s harness or a new BCM) and they both produce the same result, or if the NEW BCM produce a different result (aka keeping the auto dimming function)

Thanks!

It's pretty simple and straightforward as it's written. You need either another BCM and Jimmy07's harness or a 2033+ BCM to replace yours. It must be a 2023+. You can't just buy a new BCM for a 2020. Or you can send your current BCM to Jimmy07, and he will upgrade it. A dealer probably won't do that for you.