The system is old and the vendor is out of business
there are still many vendors who service this equipment . if you fill out your profile we can see where you are located and there may be someone nearby who can help you. To find a new vendor you can click the installers link at the top of the page here or post in the request a installer .
its not the purpose of this forum to give detailed installer level programing to end users
I have toyed around in the past and made some changes through programming.
good luck with that approach
