remote part numbers for relevant models
1J0 959 753 CT / 1J0 959 753 AG 2 button flip remote
Seat Ibiza 2003-2008
Seat Leon 2002-2005
Seat Toledo 2002-2004
1J0 959 753 DA / 1J0 959 753 AH 3 button flip remote
Seat Leon 2002-2005
Seat Toledo 2001-2003
1J0 959 753 N 2 button flip remote
Seat Ibiza 2001-2003
Seat Leon 2000-2002
Seat Toledo 2000-2002
1K0 959 753 / 1K0 959 753 G 3 button flip remote
Seat Altea 2004-2008
Seat Altea XL
Seat Leon 2005-2008
Seat Toledo 2005-2008
1K0 959 753 N (NEC) 3 button flip remote
SEAT Ibiza 2009-2011
SEAT Leon 2009-2013
As for the transponder side of things. They use id48 chips, with the newer models using CANBUS version which i'm pretty sure cannot be cloned. Unless somebody has released some cloning software for the id48 that i'm not aware of & i'm sure i would know about it as i use genuine advanced diagnostics AD900 Pro transponder cloning machine & MVP Pro key programmer for my business.
So i'm a little bit confused at tony andrews saying they can clone a VAG id48 for £10.
Craig