i have an 04 plate berlingo multispace with an indicator stalk problem, when self cancelling from the right turn position it activates the left indicator and assuming the switch has to be replaced? ( Citroen quote part @£135+VAT ), if i disconnect the battery to change the switch as obviously the steering wheel and airbag has to be removed, will the factory standard fit Radio need codeing manually or are the Berlingo models radios coded to the car the same as peugeots and automatically work when the battery is reconnected? Advice would be much appreciated.