i used to have one of those inverters on mine, was fine,
does your head unit have an aux-in? the screen is likely to have a yellow RCA video input, u need to make sure you have the cable from the PS2 that has the 3 RCA connectors, red, white and yellow, the yellow one goes to the screen, then if your head unit has aux-in, the red and white to the head unit, the sound will then play through you stereo.
thats how i did mine, worked well.
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