Typically the generic UDC software is set up for AC center opening. Might have just gotten lucky vatorgator and it matched. You will need to get software for 90% of them to match the job correctly, whoever thought AC center opening was the norm is an idiot....

Process for doing it isn't horrible, let me know if you need some step by step instructions. Does the TAC 20 job have a flash drive? I think they were dumping generic door software on them for a while so that would be helpful.

Also TKE does not use the PA3 card anymore (typical for TAC 20), you will most likely get a PA6, so don't panic, they are a straight swap in that regard.