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E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

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Old 12-21-2014, 09:56 AM   #1
03-M3-Vert
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Join Date: Feb 2014
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My Ride: TiAg Convertible M3
Homelink mirrow / no keyless entry

I've done lots of searching and cannot find an answer if the mirror in my vert can be made to work with the keyless entry. The keys will not "register" with the car, and I know the Homelink / auto-dim / compass mirror (previous owner) is not OEM to the M3-vert. I read one thread about the possibility that all mirrors could be pinned & wired with a remote antenna.

Has anyone confirmed if this is possible?

Although I don't pay much attention to the compass, I like the homelink, but I'd REALLY like the keyless entry to work.
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Old 12-21-2014, 10:26 AM   #2
03-M3-Vert
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one of the keys is brand new, so I know it's not the key's fault
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Old 12-21-2014, 09:57 PM   #3
riverwolf
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A quick search says the keyless entry antenna is located in the mirror on our Verts. If you have an aftermarket mirror then you have no antenna. Range is poor even with an OEM system so it's probably effectively non-functional w/o an antenna. This is assuming your key module itself hasn't failed. If the system was designed correctly, the antenna lenght is tuned for the keyless' frequency so randomly connecting an antenna to the keyless module may not help.

Verts seem to show up in the parting out threads fairly frequently. That might be a relatively inexpensive route to find an OE mirror.
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Old 12-21-2014, 10:18 PM   #4
Big Rick
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I did not know people could program Homelink from a key. It was my impression that you needed and actual garage door opener that was programmed with the code.

OP... Does your Homelink light flash when you press and hold it? I think they are all prewired for these... It should be plug and play.
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Old 12-22-2014, 02:25 PM   #5
03-M3-Vert
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Homelink works great. I'm trying to find out if I take this mirror apart, can I see if it is or isn't pinned for the keyless entry. I picked up an M3 vert auto-dim rearview that blew its guts out for a possible rebuild, but if there is a chance ALL mirrors may have vert possibilities with the right mod, I'd like to keep the holmelink / compass / auto-dim.

Big_Rick - I wasn't implying that I could homelink from the key, just that the homelink is nice on the mirror, but I'd like to be able to lock / unlock with the key fob.
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Old Today, 08:02 AM   #6
MIE46
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My two cents...I just opened up three oval mirrors. One form my vert it's an 03 one from my friends vert a 05 and one that I bought off EBay supposedly for a coupe don't know what year as I did not ask at. They all had the same wiring inside other than the one I bought from EBay. It had a revision 5 circuit board while the others had a revision 7. It was printed on the circuit board. My OEM mirror from my car leaked the previous owner must have tried to fix it. When he put it back together he crazy glued. Ruined the outside covers with it. I bought a rectangular mirror. Not knowing that you could fix the OE mirrors. So then I looked to buying an OEM one. Bought one off of eBay without a clown nose. It also needed to be fixed. So I sent that one out to rada-mirrior. Then I heard the same thing you guys are talking about. So my friend was getting rid of his vert so I took his and gave him the rectangular one I had. But his needed to be sent out to be fixed as well. But before I did that I decided to do that I opened up all three only to find out they all had the same wiring except for the affirmation circuit board revision. So I took the one I sent out to that had the revision 5 circuit board un-soldered it and soldered the revision 7 circuit board off my original Oval mirror from my car. Pu it in and it works great. So if all three mirrors are what they were supposable then they are all wired the same coupes and verts. But of course I don't know that to be 100%.

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