So my Legacy wouldn't start this morning. It was cold last night and was about 26 degrees when I went to fire up the ol girl to warm up. Everything electrical came on normal with the key, but there was no response when turning the key to start her. No clicking, no crank, just nothing. Nothing electrical dimmed when I turned the key. The 640 CCA battery is about a year and a half old. I've had zero issues with her for a long while until this. Idea's on where to start with troubleshooting?