Do you have the dealer programming software, or host system? Does it have unlocked or propriety firmware?
I can't really help but I can say without the proper programming software and host system you are fighting an uphill battle, and if it has proprietary firmware you will likely have to blank it and load the default unlocked universal firmware... But, you still need the proper programming software and host system to do this...
All in all, as appealing as these dime a dozen 'locked' home security panels are unless you have the knowledge and equipment to 'reset' them you are simply better of getting a new control unit from China...