Not sure if its caused my flat battery but my car struggled a little to start a few days ago went to start it today and was flat Now last week i changed the fuse postion on the back of my clarion headunit due to it not keeping its memory ie rad stations. When i first fitted it the manual said if you have a vw/audi to change the fuse position on the back of the headunit so i did. In both postions when you take the key out it turned off but maybe its causing a power drain? Coincidence and maybe my car battery is kaput? Anyone have a clarion headunit? or sinmilair problem in the past?