First of all, a word of thanks to all of the other homelink DIYs on here. They helped tremendously, but at the same time, I was left with a few questions in a few places...ones I plan to clear up with this one. I'll be nabbing a few pictures from some of the other DIY's I've found, as well as...

I'd like to get a copy too please. Or, can you attach it to this thread? I can try if you send it to me.

I attached the PDF here for those who need it

Attached Images

homelink-retrofit-pdf-february-25-2008-8-22-pm-1-3-meg.pdf (1.28 MB, 145 views)

Need help with the wiring for homelink mirror w/ auto dim. I got a used homelink mirror w/ auto dim. The mirror just have a bunch of wires coming out of it. It didn't come with the mirror arm or connector so I have to reuse the arm and connector from my old mirror. The problem is I don't know which wires to plug into which slot in the connector. To clarify, this is the female connector inside the mirror arm. I need to know which color wire from the mirror goes into which pin hole in said connector. Help!

Thanks.

Killer DIY, thanks! Can't wait to do this as I sadly discovered the E91 we picked up Friday doesn't have the premium package even though it literally has EVERY other option and package (except M-sport).

Great write-up. Got it all wired up without issue then found out that the mirror I bought doesn't attach to my windshield. I've described the problem in this thread but thought I'd post here to see if anyone else ran into this. Did you get a mirror that wouldn't mount? What model and years work with the E9X?

My stock mirror from my 2009 is the top one (without the mounting plate attached) and the one I purchased is below.

hey guys hope this helps but there is a much easier way to take off the fzn...you just have to pull down the roof just enough to slip your hand in there knuckles to the sky. then you feel for the 2 clips and just press...it is a little stiff but just press hard enough and it falls down.

and i just did it and it was pretty simple...i hope i dont have to use that brown wire though cause i just left it hanging.

fit this type of mirror! just twist

Old post so not expecting reply, but can anyone tell me if it's possible to do this retrofit to my '06 E90 325i? It's the base model with a few upgrades but not the auto-dim, Homelink, compass rear view mirror.

Can't believe I didn't just try this originally. I got it on last night without issue or modification!

Got my issue figured out, i needed to ground the wire, I read previously that I did not need to ground, but that was the only thing that worked. GL to Everyone.

Any help on programming this thing? I have a garage opener with a smart button for programming.

Thanks, this is the best diy on the subject. Only thing I would add is this:

I separated all the retro fit wires and feed them individually through the rubber grommet just fine. No straw or other technique needed.

Use the supplied plastic connection boxes supplied as "practice" and familiarize yourself with how they work and where the numbers of the pins are. You won't need them unless you break on of the connection boxes on your car.

Use an eye glass screwdriver to open up the connection box in the overhead unit. Use the supplied connection box to see how it works. You'll see the little tab the unit needs to slide over the top of.

Remember, all you are doing is connecting wires to already existing circuits. That's all.
You do need to use the above pdf diagram to see where you place the new wires since the pdf links in prior diys are dead. Don't need those directions anyway since what's here is all you need.

The wires only fit in the connection boxes one way and will click when they seat.

And, as mention before, forget any other suggestion on how to remove the top unit with screw drivers or kitchen tools. Just take out the visor clip units. Been there done that. Takes 2 minutes. Just get a Torx set if you don't have one already.

Can anyone tell me if this mod will work with a 2012 BMW 328i F30? I purchased the car from my brother in law recently and can't believe it doesn't have the autodim mirror and homelink when it has basically everything else. I would really love to do this. Would the same retrofit wire be necessary as well? Thanks for all your help.