C7 Rear View Mirror in sky??? - Saturn Sky Forums: Saturn Sky Forum
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post #1 of 23 (permalink) Old 09-11-2019, 03:17 PM Thread Starter
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C7 Rear View Mirror in sky???

So i ordered one, got it insalled(will post pics soon). I like how its a little lower profile, and i mounted it up higher so it doesnt take up as much windshield space. And the obvious...edgeless design looks amazing!

Question is, how to hook the pins up to gain functionality of the mirror including adding the autodimming?
Ive seen people do it with HHR mirrors, i assumed it similar. If someone could point me to which wire does what, i think i could figure it out. thanks =)
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post #2 of 23 (permalink) Old 09-11-2019, 04:14 PM
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There have been several threads about installing autodimming mirrors. I suggest a search.

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post #3 of 23 (permalink) Old 09-11-2019, 05:08 PM Thread Starter
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post #4 of 23 (permalink) Old 09-11-2019, 05:10 PM Thread Starter
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I've read of lot of the posts. They say a lot about adding the wire for auto dimming, but I'm using a different wiring grid entirely. I can match them up for function, I just need to know what each wire in ours does. I found the wires for the C7.
Is there a post somewhere that does show the grid? I definitely could have missed it.
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post #5 of 23 (permalink) Old 09-11-2019, 05:11 PM Thread Starter
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Also, if anyone has ANY advise of how to remove the metal mounting bracket attached to the windshield....please share. That thing is stuck hard core. I've tried heat, solvent, razors....cannot get it off.
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post #6 of 23 (permalink) Old 09-11-2019, 05:58 PM
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Quote:
Originally Posted by Draike13 View Post
Also, if anyone has ANY advise of how to remove the metal mounting bracket attached to the windshield....please share. That thing is stuck hard core. I've tried heat, solvent, razors....cannot get it off.
You will not remove it without breaking the glass (-- or until 10 years of sun and vibration release it )

Mirror connector pinout here: https://www.solsticeforum.com/forum/...04/#post693675, and here: https://www.skyroadster.com/forums/f...tml#post417848

... and via google:


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post #7 of 23 (permalink) Old 09-11-2019, 06:03 PM
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Originally Posted by Draike13 View Post
Also, if anyone has ANY advise of how to remove the metal mounting bracket attached to the windshield....please share. That thing is stuck hard core. I've tried heat, solvent, razors....cannot get it off.
Heat and a very thin, small flathead screwdriver. It will take some force but just keep that flathead completely flat against the glass.


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post #8 of 23 (permalink) Old 09-11-2019, 06:04 PM
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Heat and a very thin, small flathead screwdriver. It will take some force but just keep that flathead completely flat against the glass.
I really wouldn't ...
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post #9 of 23 (permalink) Old 09-11-2019, 06:11 PM
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What we use when doing repairs is a propane torch for heat and a slicer made from piano wire, like the ones sold to cut glass out of cars. Our experienced technicians break about 10%.

In the old days they were attached using a strip of melted PVB (vinyl) and later some were attached using a silicone adhesive called Sotefa. Those could be popped off relatively safely. Now they are almost all attached using an autoclave-cured structural bonding tape that is stronger than the glass.

Listen to TS, he has good advice.

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post #10 of 23 (permalink) Old 09-12-2019, 10:09 AM
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It's something I have done successfully on a couple of cars...some older, some newer. Did it a few weeks ago on my son's 1992 3000GT when he glued a replacement numb on the window upside down.

Either way, it's something that if you try it, don't force it like a gorilla. Slow and steady pressure...if it will come off, you'll feel it give slightly. If it's not going to come off, don't try and force it or you will break the glass.

Just figured since we're dealing with something fragile with glass the latter part was self evident.


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post #11 of 23 (permalink) Old 09-12-2019, 11:11 AM Thread Starter
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From what ive gathered its about even heat, not overheating, the glass. Piano wire was a good thought, and definitely be careful.
Ill be trying it tonight after the car is sitting in the sun all day getting the windshield hot. Ill let everyone know how it goes. lol
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post #12 of 23 (permalink) Old 09-12-2019, 12:05 PM
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You have to get the mount hot without heating the glass. If the glass gets hot the vinyl laminate will bubble and cause a crack. The bonding material also tends to be weaker in shear than in tension, so twisting the mount off is generally better than prying. Prying is also more likely to pull a plug of glass out of the windscreen.

I give you about a 50% chance of cracking the glass. Good luck.

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post #13 of 23 (permalink) Old 09-12-2019, 12:44 PM Thread Starter
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You have to get the mount hot without heating the glass. If the glass gets hot the vinyl laminate will bubble and cause a crack. The bonding material also tends to be weaker in shear than in tension, so twisting the mount off is generally better than prying. Prying is also more likely to pull a plug of glass out of the windscreen.

I give you about a 50% chance of cracking the glass. Good luck.
So youre saying flip a coin, and if I call it right...go for it! lol
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post #14 of 23 (permalink) Old 09-12-2019, 02:03 PM
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Pretty much. And then, if you don't crack it, think about buying a lottery ticket.

We make 1.2 million windscreens a year here, and about half of them get mirror mounts. A percentage of those are mis-placed and don't get detected until after they are autoclaved. We will typically have to repair 10-20 during every production run, so it isn't like we are always pulling them off. When a new repair tech is being trained they will break about 50% of what they try to fix for the first couple of days, they they only lose about 10%.

We have used structural tape for mirror mounts since 2000, and it became pretty much industry standard a year or two later so I assume Crinamex used it for ours. If they used anything else you will have a much easier time getting it off.

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post #15 of 23 (permalink) Old 09-12-2019, 04:14 PM
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Really nice.
So no OnStar/Aux buttons?
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