Hello Who has the Radio JVC KD-SHX751 or Pioneer DEH-P80MP or Panasonic CQ-C7301N and can tell me something about the radios or how it is meant by it ! Since some HIFI dealers can only sell and not know much about these devices ! How is the e.g. uploading pictures to the radios works with all or there are problems with some or so the highlights of the radios ! You would really help me further !!!!!! Thank you !!!! MFG Bastuck Corsa