Hey

i got a car pc it has a dc to dc power but i'm just finding it hard how to actually get the power from my battery to actually power my carpc what do i need to use to get the power from my car battery to the carpc and also i got a kenwood Kvt-617 dvd single-din touchscreen..i want to use the cd player instead of buying an external dvd cd rom....is it possible to use the cd player in my dvd or do i have to buy a extrnal one which i have to plug into my carpc

thank you.