I have a Clip that I have been using in my car. I have a mini-USB car charger to keep it charged, and the audio output goes to the car stereo's aux input.

This system worked fine for several months. When I turned on the car, power was applied from the USB charger, and the clip turned on and started to play from wherever it last stopped. When I turned off the ignition, the Clip shut down after a short time (Auto Power Off mode).

Recently, the Clip started going into "Connected" mode whenever the charging cable is connected. There is no computer present - only the power (+5) and Ground signals are used on the USB charger. 

 What could have changed in the Clip to cause it to interpret simple charging power as being connected? What can I do to solve the problem? 

Thanks!

From the Clip manual, page 6:

"The battery can also be charged using an AC adapter (not included) or a car adapter
(not included) and you will be able to play your device while charging with one of the
adapters.  "