Patrick,

I'm not a custom installer, but I have played with the RF extender(s) quite a bit. Under some circumstances, there CAN be a problem with range as well as placement with these things. What I don't understand is why you have them all set to the same ID - other than maybe ease of setting up your ccf. Bocapro has a good point, but if you're going to stick with the extenders, try changing the ID's (on both the units and the ccf) if not the channels.

Jim L