No Connection My qwestar 10 disc changer the wire controller says NO CONNECTION. What does that mean and how do I fix It. Thank you

Make sure that all the cables are fully inserted to the cd changer and the modulator, also, the remote has a reset button press it, remove power all together including the memory line that will reset the player, if not you better contact the manufacturer's customer service, I had a similar problem with mine and the problem was caused by excessive vibration to the player, since it was under warranty I returned to the factory and they send me a new one, no more problems after that, that happenned 3 yrs ago, now days mine is drawing too much current and kills my car's battery after a week or so, I'm now using a 5 amp fused cigarrete lighter connector to power the player but only while the car is running every time it starts with disc one because the memory gets erased every time I plug it in, I do make sure to disconnect it 2 or 3 minutes before I turn off the engine good luck