Cant figure out how to post a picture but I went and looka t a 69 Impala SS 427 convert tonight that had a metal box mounted on the trunk floor!It said "Safety Control" and also "Gyro matic auto control".I was a foot and a half long and maybe 5 inch wide/tall! I can send a picture to post if someone will do it for me,,what is it?

thanks Duane