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There is a small crescent shape of clear mirror on the top middle of my mirror. I think the dimming "juice" has been compromised. Am I SOL or is there a way to fix it? What vehicles are interchangeable and is there a mirror that's better that I could swap in?
Mine did this earlier this year. I went to the Goldmine and got one out of an 05 Expedition. You have to modify the plug ever so slightly by breaking a tab off. Works better than my old one did before it crapped out. There is a thread in here somewhere about this. I also used a little clear silicon on the mount to keep it from vibrating. There is a very slight difference in the mount size between the two vehicles.
There are tons of options, new or used. I was contemplating putting one in that had a view screen in it, but ended up buying one from Tylus. (I don't remember what it came out of.) This one doesn't have the manual override switch, but I haven't missed it. I suspect the most you'd have to do with anything you get would be to move some terminals in the plug.
That model mirror is the one that has 7 wire plug. The 3 on the inside is for the power, ground, and reverse. The outer two not sure. I know that dodge used the same mirror though.
Did some digging. Mine doesn't have the prongs for 6 and 7. Guess the truck I got it out of didn't have auto lamps.
The excursion is the only one that had the 3 prong harness in it. Or at least mine did. The opening for my plug in my factory mirror was only big enough for the plug in the pics above. I had to cut the lock tab off mine to make it work with the explorer mirror.