In the descriptions is always pointed out that the docks of the first hour are not compatible, there is no power supply on the iDock port takes place. Also portable docks are sometimes therefore a problem as their connection usually provides power only when mains operation. There are alternatives to batteries, the only way at the edge. What no one has mentioned, however, that there are docks that accept only digital signals. My Marantz Consolette MS7000 is an example. It works with the power supply, so that Bluetooth is also routed obediently through the adapter. Also in the display everything is okay, the time is displayed, the Consolette switches when plugging directly to the dock. However, and there lies the problem, does not understand the audio stream and will therefore not enrich with music the inclined users.
Be assessed frequently negative that these adapters, on the one hand of course, distorts the other hand also the image. The manufacturer or seller can not test Lale idiosyncrasies, because these adapters are now times no Apple product. Nevertheless, it would be helpful if you would distinguish the analog and digital audio transmission. The latter in any case is not suitable for this iDock adapter.