I have a 04 renault megane. I absolutely love this car apart from one very annoying problem. The mini 15amp fuse (radio) keeps blowing everything time I use the cigerrate lighter for charging. For the first time it happened, the a/c and washer was not working. The radio stopped turning on/off automatically when I start/stop the car. The radio also turned off automatically for every 20 minutes. I opened the fuse box and found the 15amp had blown. Therefore, I replaced the radio fuse and everything worked fine again. However, it did not even last for a day. It blew again once I used the cigerrate lighter. Now, four 15amp have blown so far. Any help or suggestion would be really appreciated.