Hi Derek Welcome to the club ! As for the tyre pressures...If they are standard rims and tyres then the owners handbook should have the pressures. If not fitted as standard, I'm sure I have come across a calculation somewhere but in general, 30 psi all round should do it as a starting point. Anyone have similar tyres (profile, width, etc) that can advise? As for the radio code, if the memory is not erased then usually a code is not required. Enjoy your Jag ! Regards Trevor