I installed a surrond system in a small apartment building for the tenants use controlled by a URC KP 4000 and a MRX-1. I am using a PSX2 ipod dock connected to a remote dock with an extension cable. I cannot get the Ipod to connect to to the PSX2 through the remote dock.  I've tried 3 different docks with the same results. When connected to the cable without the dock it works every time.
Can anybody recommend a dock that will work in this application and a source for it?