i have a dual xdvd8181 has red blinking light around power button ?

[shangirl76]

i have a dual xdvd8181 when i hook it up in my 98 vw jetta i get a red blinking light around the power button ? i bought it used at flea market when i first tried it i hooked up yellow wire to the yellow, red to red and black to black and thats when i got red blinking light ? do i need to hook up the brake wire for anything to work ? or is that just for the dvd while your driving? any info would be great thanks alot dale