The Peugeot 306 was produced between 1993 and 2002 and came standard with a factory radio and cassette player. If you want to upgrade your stereo, you must first remove the factory stereo. While a car audio specialist will be happy to do it for you, he will also be happy to charge you for it. Removing the stereo yourself requires basic tools and a minimal amount of time.
Disconnect the negative battery cable from your 306's battery.
Slide your radio removal keys underneath the corners of the radio. If you don't have radio removal keys, two thin flat blades--two putty knives, for instance--will work as well.
Push in on the removal keys to unlock the two retaining clips holding the stereo in place.
Slide the radio out of the 306's dashboard.
Disconnect the antenna cable and wires from the back of the radio.
Always disconnect the battery to avoid shorting out your radio