I left my car for two weeks with the "pop off" out. On my return the stereo says "safe". I've got what I think is the code on my vauxhall security card but when entered it just counts down with remaining tries left ( i presume). Can anyone help please? It's sad without any sounds. codes on the back of the "pop off" read as follows:- 4 660 103 delco GM 90 493 281 >PA6-GF15< thanks for any input.