O.K. It looks like you are connecting, but if I look at your picture, looks like not that much is wired to it.
Here is the installers guide. HAI Installer Guide
Look on page 10 and you can see the terminal locations. Yours doesn't seem to have much wired to it, which is strange if it was ever fully functional. It may be just a very minimal installation, maybe one smoke alarm and a motion sensor. I would check for window and door sensors. So if you open a window, there could be a magnet in the window, and sensor in the sill. On a door, the magnet is inserted in a door and the sensor is in the frame.
So with an alarm, the biggest expense is installing all the sensors and wiring then. The actual panel is the cheap part. I don't see any siren, phone connection, zones, etc. So the question is was it disconnected, or was it never installed? If you never had this stuff installed, or the previous owner never did, then your probably wasting your time with it, as it looks like not much is there.
Here is the installers guide. HAI Installer Guide
Look on page 10 and you can see the terminal locations. Yours doesn't seem to have much wired to it, which is strange if it was ever fully functional. It may be just a very minimal installation, maybe one smoke alarm and a motion sensor. I would check for window and door sensors. So if you open a window, there could be a magnet in the window, and sensor in the sill. On a door, the magnet is inserted in a door and the sensor is in the frame.
So with an alarm, the biggest expense is installing all the sensors and wiring then. The actual panel is the cheap part. I don't see any siren, phone connection, zones, etc. So the question is was it disconnected, or was it never installed? If you never had this stuff installed, or the previous owner never did, then your probably wasting your time with it, as it looks like not much is there.