Hello to all. I'm the owner of a Citroen C3 GNV. I've installed two types of car radio in the past and it functioned without the need of starting the car's engine and no problem with battery been flat. One of those was a 7 inch screen. Now I've installed a 5 inch screen multimedia car radio but to use it, I need to start on the engine or start on the car's electrical system . I think it have something to do with the Economy Mode. My question is: why, with the others car radios, it didn't need to start on the engine / electrical systems (in fact, I just needed to start on the car radio only) and with this I need to do it? I'm worried that the technician didn't installed well this time, since it never happened in the past. What can I do? Thanks very much
