If it is a Peugeot/Citroen COM2000 unit you are talking about I'd use Maplin Contact Cleaner. A 200ml spray can will cost you £3.99
http://www.maplin.co.uk/p/maplin-contact-cleaner-200ml-n61an
But in future please mention what make and model of car you have.
ChicksFan
February 2014