V4 PS2

[racingtoys]

Hi everyone i have a PS2 V4 (i am guessing since it has 8 screws on the bottom), well my question is: Is it possiable to use a Game Shark 2 V1.9 using the mod chip swap to play burned games?

Also, I heard about a way to open the drive by wiring in a switch that would activate the motor that opens the cd tray. Is this true? and also is it safe for the PS2?

Thanks,
Chad