oh, crap. I guess it is time to get out the old measuring tape. I would suggest going down to a local scion shop and check it out in person. you know what your box looks like. and you will be able to see for yourself if it will work. I would also suggest bringing in your old box and try it on the car. I have had people come into the shop with wheelchairs and all kinds of other things to see if it would fit. try that and call me in the morning.