on my 1983 civic hatch, '84 civic hatch, '85 crx, and '92 civic vx, non of them came stock with a passenger side view mirror, my civic vx does have one tho, but just like a number of other things, it was a factory, or maybe a dealer option, and cost extra, the block off plate uses the same holse as the mirror, however most of the sedans use a differnt mirror I belive, and I think it was just the base modle civics, and the fuel efficent modles that didn't come with a mirror stock... so the block off plate might not be a perfect fit, but I can't say for sure.
also, most states require that you have two useable mirrors, so if you are towing a trailer, or have something blocking your rear window, you are suposed to have a passenger side mirror, I personaly don't use it much either, partly because this is the first car I've owned that had one and I'm just used to it not being there.
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