I have been lurking on this forum for a while considering whether to purchase a Harmony. My only remaining concern is the potential for Harmony's knowledge of device "state" to be confused by my JVC system's integration. For example, placing a DVD in the player automatically changes the audio source on the receiver (although it does not change automatically to the component inputs on my Toshiba TV). Do I have to disconnect the compusync cables, or can this peacefully coexist with the Harmony?