hi, i have a line 6 POD 2.0 USB interface that is meant for recording. however, i don't have the power adapter for it. i've looked online and can't really seem to find an answer, or its vague. I'm not sure exactly what adapter it needs. I tried fitting a regular 9V DC adapter in it, but it wouldnt connect/fit. Does anyone know what adapter it needs? sorry for such a noob question.