What a task! We are only a few days into teaching the furry beasts how to recognize the flags on the wireless fence. For it to be effective, you have to either lift them over the 'invisible barrier'... or drive them over it when you go for a walk. Sam is around 100# so that's not going to happen... now my morning routine has changed some, we pile into the car and drive off somewhere to go for a long walk.
I can't tell you how many times Cassie has decided to come from the very back to come sit in the front seat. NOT GOOD. I'm not all about having fur and footprints all over the inside of my car. SOOO
I just got done installing a wire barrier system we had purchased for our old Expedition... I thought it was specifically for only that model - but as luck would prove, it fits beautifully in my Volvo. No more wandering clay-footed-furrry-monster-flying Cassie wandering around the inside of the vehicle!