Let me go through this step by step because there are a few things that need to be done in order to bolt these mirrors up.
#1. The Gen 3/4/5 mirrors have 3 studs that drop down onto the door and are bolted to the door from the underneath side.
The Gen 2 mirrors are
NOT mounted this way.
The base of the mirror bolts to the door from the outside of the car by turning the mirror housing to gain access to the bolts. There are nuts welded to the inside of the door skin that allows you to bolt them down without being inside the car.
Since the new mirrors have 3 mounting studs you need to remove the center stud on the new mirror to make it work on a Gen 2.
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#2. The welded nuts on the door skin need to be removed to make room for the new studs to drop in place so you can bolt them down. You could ream out the holes on the nuts but it's easier to just remove the nuts entirely. I just put a socket on them and tighten them until I broke the welds.
IF you don't like this method you could simply drill new holes and leave the nuts welded in place so you can go back to the original mirrors.
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#3. Now you can drop in the new mirrors and bolt them down.
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DISCLAIMER
This is where I'm extremely picky with this mod. Your results will vary.
However I'm a perfectionist and I'm still in the building stage of this mod.
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You can see out of this mirror as is with no more work involved in stock location but the a-pillar blocks a little bit of your view closet to the window.
Here is why I want to tweak the base and mounting position.
Gen 2 door and mirror angle.
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Gen 3/4 door and mirror angle.
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Gen 5 door and mirror angle.
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Do you see the difference of the mounting angle on the doors for the different Gen's of Vipers? Since there are different shapes it creates different angles and viewing angles of the new mirrors on the older doors.
So.....
You will get small gaps around the base like this.
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So what I want to do is drill new holes moving the mirror base up closer on the door that centers the mirror base and will also move out the mirror housing away from the a-pillar.
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However before I do that, I will move the mirror back towards the door and then rotate it up so it will center the mirror base on the door which will bring it back away from the a-pillar.
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So back to your questions. Yes you can see out of it, but I wouldn't do it without adding power to it. It's just a simple 3 wire hookup and you could get the control knob and harness from a Viper salvage yard or even eBay. The overall position of the mirror looks fine as is, all of it will just depend on where you are sitting in the car and how tall you are etc. To many variables to really explain it in depth. I tried to explain this as best as I can. My car is red.