Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
If I don't care about being able to open and shut the car with the remote can I get something like this https://www.ebay.com.au/p/92049153-...m=401045452488&_trksid=p2349526.c100854.m4779.you'll have to get all the locks changed and a new key and the transponder coded to the car.
dealer or locksmith job.
You don't have to change the locks. Go to Holden and get your BCM code and key code (all you need is rego papers to prove ownership) then go to this guy on ebay:
https://www.ebay.com.au/itm/CUT-PRO...048372?hash=item33d8961c34:g:b3sAAOSwVTNZ4IFg
You send him your codes and he sends you a genuine brand new key, cut and coded within a few days along with instructions on how to pair it to the car (very simple). I did this for my VS for $100.