I have tried to add a DSS to a system and con't seem to get it to work. I plug the blue tip special cable into the MLX-20L DSS jack and into the IN jack on the DSS. Nothing happens. Then the buttons on the 20L start doing weird things. I ordered a different DSS. Same thing! These are secondary market parts, mind you. Is there any programming or special things I need to do to get the system to recognize it? I find no reference to special procedures in the books, other than identifying what range the buttons perform.
Help!!
Help!!