EcoLink O/C Sensor + ADT Sensors. Hookup Question

So I have wired a few of my hardwired ADT door/window sensors into EcoLink Open/Close sensors and I have 2 questions for those who have also done it.

  1. were you able to leave the wires hooked into the panel or did you have to remove it. I thought it was working all connected but i realized it wasnt the other night. Seems to work fine when I remove the connection to the panel node, but I do lose the chime!
  2. Did you connect before or after the resistor thats hooked into the low side?