A few years back, we purchased a Curtis portable DVD/CD Player DVD 8007B, and the car plug adaptor is no longer providing power to the DVD player. We no it's not the source, in the car, because we have used it for other things and it works just fine. The red light on the plug adaptor however does turn on when it is plugged in. Any suggestions as to what the problem might be? Sincerely, Trina Johnson