from wot my mates told me at the pub...remotes with used transponder chips have to be taken to the dealer, u cant just stick it into the ignition with a newly cut blade...and ya looking at a few quid for this apparantly
apparantly for some cars u can do it urself with vagcom...but he didnt think u could with an
ibiza? and he believes his is 434mhz... not 433.92 rounded up
all theory though so dont take it as gospel, just a caution
if anyone wants to try it...be my guest...cos theres only one way to know forsure!!