Opel and Vauxhall are brand names or "badges" of cars made and sold by GM or its sister companies. The Astra and Vectra models are sold by GM in different parts of the world using either the Opel or...
get a wire hanger cut it into 2 u shape pices slot them into the holes on the frunt of radio where the 4 holes are put some presure on them and pull the radio from the tape deck just did this today...