Hello yesterday I installed my new Sonyradio CDX-GT450U in my Opel Astra G, where the factory radio CDR-500 was still in it. So far everything works really well, but I have the problem that the radio restarts at the start of the engine. Actually, that wouldn’t be too bad, but I listen to music via a USB stick and the radio has to read again every time and that takes 10 seconds at the few GBs…and if I copy even more music on it, then think The interesting thing is that if I hear a song, then turn off the ignition (-> radio goes off) and then turn on the ignition again (-> radio goes on), the USB stick doesn’t have to be rereaded and it plays directly where I left off. However, if I start the engine then the radio turns off again and on again, but then it has to reread the USB stick, but still plays on where it was stopped. I already lost my memory. uch if it is enough to replace the ignition plus with permanent plus, but without success, that makes the thing rather worse (he plays again from the beginning and not from the same place) Can I wire something so that the radio does not go off at the start of the engine, or at least does not have to read the USB stick again? Is it also possible that I can start the radio even without the ignition switched on? Thank you very much for your help!