Volkswagen Polo no power to coil meaning no spark

I drove to a friends house to re wire the remote cable for my subwoofer, after finishing this, tried to start the car in order to test the sub, the car would not start, I checked the dizzy cap and rotor arm, these needed replacing as they were both destroyed, replaced those and still nothing, put a multimeter onto the plug that goes into the coil pack and there was nothing, even when turning the engine over. Please help!!!