CLICK HERE for a schematic of the NAV system. Don't ask how I got it.
Be warned, unless you are an electronics guru and know exactly what you're doing ... don't. You will need a converter.
Otherwise, consider this thing.
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Like the poster mentioned earlier, the easiest and best way to get a composite video input is via the video interface from AveElectronics. I purchased the budget version which only has 2 inputs. Th ebetter version has more inputs and a remote to change inputs.
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