Hi guys, I have a little quandary with my stereo. It works fine when I insert the key into the ignition, and when I turn to position one, but as soon as boot up the engine the thing turns itself off. This has only started happening recently - thought it must be a fuse, but fuse number 22 is fine - altho my cig lighter doesnt work which is also fuse 22 but that never worked. Any clues??