As an S-Type owner, you'll be aware (I guess) of how sensitive the electronics is to low battery voltage. You'll maybe not know though, what you're expected to do after dis-connecting and re-connecting the battery. I've put together a PDF document which takes you through the procedure step by step. Nothing that isn't readily available elsewhere but just gathered together and (in my view) logically ordered into a single reference. It also includes how to get the audio system working whe