I'm trying to direct wire an Escort 8500 in my RTL and so far I can't find a circuit that goes off when the key is off. I tie into a fuse in the panel by the parking brake, for example #9 the one for the rear accessory outlet. This is only on when the key is in position 2 or 3. However, my radar is on all the time. I've done the same install in two previous cars, an Audi and Infiniti and it works great. Does anyone have any ideas for me to try?