If you can get to the fuse panel, pull-off the cover. There is a terminal (Red) that you can pull out (extend) that you can connect + 12V power to. You will also have to connect the - 12V side of the power to chassis (ground).
Another option is to use the cigarette lighter, instead of using it as a power source, you are going to put 12V into it.
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Jäger
300K Mile Club
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