I have confidence though that as time goes by, she will improve in this area too. It might improve more quickly if I could manage to remember to take the baby food meat with me on these outings, but as I keep forgetting that, it could take a while longer. 
I'm also just relaxing with Sirius and following her lead on what she is comfortable with. If she wants to go outside, I let her outside, if she shows no interest whatsoever in going outside, I leave her inside. I have been putting her thundershirt on her in the evenings before I take Sky out for her walk. Then when I get back, I can add Sirius' harness and take her out for a short walk. I am learning that shorter is better for her. She likes to get out and see things, but if I spend longer out walking with her, she becomes more tense and starts reacting to things.
I have been putting Rescue Remedy in the dog's water for about 2 weeks now and I noticed today that Sirius was much less reactive to things in the yard. No dogs passed while we were outside, but there was a dog out in it's yard about 3 houses down that she sat and stared at for a while. The other dog appeared to sit and stare back. Neither dog said anything to the other. They just sat quietly looking at each other.
I know my son, who hasn't had work recently, has been putting Sky out into the yard quite a bit because she wants him to play with her all the time. I'm not sure if he is putting Sirius out as well. He does take some time to play with the dogs. He will play chuckit fetch with Sky. For Sirius, he will break up some lamb lung filet treats and scatter them around the yard for her to seek and find.
Today would have been an absolutely gorgeous day to take each dog out to a park for some exploring and traffic free walking, but instead I ended up sitting at the tire shop for several hours as I managed to drive over a bolt last night and impale a tire with it. House cleaning got moved to the afternoon. My husband's allergies have been horrible this year, so it is best to clean when he is out of the house. I did eat lunch outside with the dogs while playing chuckit fetch with Sky. And I did spend some time in the morning and afternoon outside giving Sky a work out playing more chuckit. Maybe we will make it to the parks tomorrow.
Thanks again for all the advice and support!
I can't even describe how wonderful it is to walk Karma now, compared to when I first got her, but with a lot of hard work, patience, and time, I have a better dog for it! 
However, Karma was in the vehicle, when they lifted the van on a hydraulic lift (which I didn't like for safety reasons), but she did good by laying down while it was up! I, on the other hand, wasn't so relaxed, I was worried! 
