gentex gntx-221 wiring pin out

I have a Gentex GNTX-221 mirror from a Lincoln Continental that has Autodim, LED Map lights, and Compass display. I have searched every Gentex thread here at 12v and no one has posted the wiring pin out for this mirror. One other person asked about this specific mirror a long time ago, but there was no definitive answer. See here.... https://www.the12volt.com/installbay/forum_posts.asp?tid=13524#reply Does anyone have the wiring schematic, pin out info for the 7 flat connector on a Gentex 221 from a Ford/Lincoln Continental? Thank you in advance.

Pin#1: Ignition – Ignition source when key is in the ON position Pin#2: Ground – Chassis Ground Pin#3: Reverse Over-ride – Connected to reverse lights. To disable compass when car is put in reverse for better visibility Pin#4: Temp. + -Temperature probe + Pin#5: Temp. - - Temperature probe – Pin#6: Door switch – (Normally open) Turns on mirror LED lights Pin#7: Battery – Constant 12vTed

2nd Year Tier 1 Medical School

Still installing as a hobby...pays for groceries

Compustar Expert

Thank you for the reply. This mirror does not have temp display, so does the pin out layout change when there are not 2 pins allocated to temp probe?

Last i checked, all GNTX-221 models had the temperature. Anyways, if your mirror does not have such, simple ignore those pins as layout does not change. Looking at the plug with the release on top from WIRE SIDE, the left side is pin 1Ted

2nd Year Tier 1 Medical School

Still installing as a hobby...pays for groceries

Compustar Expert

Thank you again for the reply. I think all GM & Chrysler GNTX-221's are the same, but I have a feeling the Lincoln might be different. I say that because there are wires coming out of all 7 pins and from what I've been able to find by searching is that some Gentex mirrors have a 5v output from the rearview mirror for autodimming side mirrors to activate. I suspect this is the case with the Lincoln mirror, but someone who's been there, done that would settle it so I don't wire this mirror up incorrectly. Thanks again.