I have an old DSC system that was installed when my townhouse was built 15 years ago. I’m looking to upgrade to a new system and I’m trying to decide between a Concord 4 system or a Qolsys IQ Panel 2. I’m considering the Concord System because it seems easier and possibly cheaper to add my existing wired contacts to that unit. I do not have that many wired connections (2 doors, 2 windows and a motion sensor). If I go with the Qolsys system I would probably just get new wireless sensors for the necessary access points. Please let me know your thoughts on which way is best.