Oops, sorry, didn't see the post asking about securing the sled.

The WRX has plates that screw into the sides of the factory radio. The space between these plates is a bit too narrow for the empeg. JimH was able to s-q-u-e-e-z-e his in the lower half of the opening, but doing the same on the top is near impossible without breaking something. So... I dremeled the screw holes of the plates to give them a little play. Then, I was able to s-q-u-e-e-z-e the empeg in the top half of the slot. The fit is so tight (along with glueing the sled to the dash bezel) that no straps were needed.

In my Focus, the dash adapter from Crutchfield was nice enough that other than bending some of the tabs on the sled, I didn't need to secure the back either.

32GB Mk. II in a WRX
Detroit, MI USA
www.PfeifferBeer.com