PS2 install

I'm installing a playstation into my car and i'm running into a problem. I hardwired the power inverter to my ing. wire and hooked everything up and when i turned it on there are lines going down my screen. I tried putting the inverter in other locations thinking it was maybe getting interferece but no luck, tried the same with the ps2, no luck. I talked to a few buddies and they said try going right to the battery and same thing. Both ways get the same result. If the car is on acc. it works, whenever the car is running is when i get the lines. I just put higher quality rca cables for the ps2 i'm going to try tommorw and hopefully that will help. The system i'm hooking it up to is the Pioneer AVH-P5700DVD. Any comments?

friends and i have had the same problem with our sreens before eazy fix just run wire from your ground wire on your radio to your PS2 if it the old ps2 right above your on/off swith there should be a small hole with screw threads take the ground wire and crimp a ring loop on it and screw it in with a small and short screw should fix it

my bad the screw hole is betweeen the ac power cord and the av cable

PS you need to get the power stright from the battary and use about 10 gaurge wire with a fuse and use a relay to switch on your inverter. a inverter pulls a lot of power and the ing is not a got place to hook it up