hi recently purchased an 02 stilo 1.6 active and replaced the standard radio with a sony head unit, around the same time ( not sure if it coincided exactly) the electric windows and central locking packed in, had the radio fitted free at halfords so unsure what if anything theyu have done wrong in. thought id ask those more enlightened folks before undertaking radio removal etc. no power getting to either driver or passenger controls and fuses are fine, help would be much appreciatred