Q: Hello I have a 2005 volvo xc90 and I would like to add original volvo headrests with dvd monitors could you please tell me if something like that is possible to do, do I need any wiring harness?

A: Yes you may add dvd monitors to your xc90, if you find such a set all you have to do is cut existing cable and add 12v adapter, so you cn plug it in to your cigarette lighter, this is the simplest way I know of, it is stand alone system so all it plus and ground, you will also need remote with it.
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