just bought a new pioneer deh 2450 head unit and to be honest i have no f***'n idea which wires are which-someone help me with some wiring diagrams or advice, thanks.

Have you got a gregorys or ellerys manual for the VL, If you do then the wiring diagrams for the stereo (and everything else) will be near the back, if you dont have a manual for the car then I suggest you buy one (bout $30) Where abouts are you?

Its really pretty simple buddy, get urself a test light ok. There are only 4 wires u need to reconize, red=ignition orange or wat ever colour is constant 12volts, black is earth, and blue is remote turn on of the amp if u install one!, So therefore just turn ur ignition on and test the wire,if it lights up then turn the ignition off and try again,hopefully it wont light up, and do the same for the constant 12volts wire=that should permantely be on! good luck

color code will be (off back of radio) Red= ignition switched Yellow = constant (not red) Blue = remote Black= Earth (body of vehicle)