Me & my husband submitted the application last september and had our ROM in putrajaya last year November
My IC under selangor and his was kedah
He changed his address to kl address on the spot, same day we submitted the application form
JPN is just located one floor below the marriage registration office
Paid RM 1 to change the address in the chip, no need change the whole IC

Not sure this way still valid or not, since it was few month ago