hi there im very new to this,is there any one who can help out there.i have just got a 51 plate fiat punto 1.2 elx 8 valve.i have got a cd plyer to go in her i have the iso leads and the face plate.i have a small prob,the radio is powerin up and working fine,but a want it to come on and off with the ignition,wheres the switch live wire anybody know.please helllllllllllllllllllllllllllllllllllllllllllllp me,many thanks