The JVC-AUX is a current sensing
device that will automatically interrupt the JVC J-Link audio lines going to the
JVC radio (and switch in an external RCA signal) whenever audio signal is
detected on its RCA inputs. The JVC J-Link audio lines will reconnect to their
previous state 10 seconds after no audio signal is detected by the JVC-AUX on
its RCA inputs.
The JVC-AUX allows you to add an auxiliary RCA source to the JVC radio while
still being able to maintain your CD changer, or other J-Link device.