Hi I’m towing a Suzuki celerio on an A Frame and I noticed the back lights were on when we were half way to where we’re going. I made sure all the lights were off and nothing else was on. The key was in and turned to the first position so that the steering wheel lock doesn’t come on. Now the battery has gone flat. I can’t work out how to get the back lights off when the key is in. Any advice would be appreciated. Will need to jump start it tomorrow. Hopefully it will start. Thanks in advance.