getting trade in back after backing out of a contract....?

[? Crystal ?]

We just signed the contract on a 2008 Nissan Armada. We traded a 2002 Nissan Xterra in for it. Driving the car home, I realized it was WAY too big for me and went back to the dealer ship to get out of the contract. We were told he was busy to keep the car till Monday and to come back and it will be a small fee to get out but they would work with us....WE GOT VERY LUCKY. After talking about it my husband and I decided that we just want our Xterra back and to get it paid off ( we have 2 years.) and and then go get a new car. Since we used a trade in plus 500 cash can we just get both back???