headrest monitor w/built in dvd question

[Greggk 10+ year member]

i have sitting at the house a set of audiovox 546018 headrest monitors with built in dvd players for a lincoln navigator. i wanna put them in my oem chrysler 300c headrests... what do i have to do to put them in the headrests and the wiring harnesses are for a navigator.. what do i have to do to put it in the 300c?

here are the instructions that came with them..

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