i install mine too..cheap aftermarket brand with video support..the only thing i did is i have bought adapter plug so no cutting needed..all together it cost me 60 $. I used video output to flip down 22 inch monitor and boy ih boy i was really surprised the great video quality using mine thumb drive on this aftermarket radio
Better is connect red and yellow wires leading from radio to a black-red car wire, not to red-yellow. The radio will run only if the ignition is On. You will not drain your battery in one week.