HAHA on the manakin heads! Ive freaked out a couple of mormons and jahovas witness coming to my door... lol.
Ok so what kind of relay do i need? what is the relay for? Im sorry im somewhat car/electric savvy but computers lose me

I was thinking just getting an inverter, hardwiring to the cars electric system and plug in. and for the monitors i really dont know how to wire them. I was planning just powering it and plugin the rca to the front monitor and the front monitor the pc. but i would like them wired to the pc so the computer can control the monitors. for example, having navigation running up front and dvd on the back. thanks for the comments everyone