Title: not recommended for amateur installers
Review: I ordered one of these to install a new stereo in a Ford Focus, but it also included tabs for a Mercury Cougar -- tabs that must be "trimmed flush" before you can use it with a Focus. I tried all sorts of knives and box cutters, but had no luck cutting the extremely thick plastic tabs, which are not easy to access with anything but a small cutting tool. Eventually the plastic broke at a much weaker point. Now I have to decide whether to try to glue this one back together at the damaged point -- and still try to remove the tabs -- or buy a new one -- and still try to remove the tabs. Very frustrating.
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