try asking the key duplicating specialist in Turf City, Huat Kee
Autokey i think. www.autokey.sg Call them to ask and confirm if they
can duplicate and programme in a Vito key first... last year called
up to check if they do it to my older VW they say can, went there
then suddenly say cannot cos they only can do the newer VW Caddy
only... so you better confirm with them first.