[mikegett]

I tried to point this out a while back. The determining factor for a car's din is not the opening of the trim but the size of the radio. This is due to the fact that many car manufacturers place a trim over the factory head unit. Nearly all GM vehicles incorporate a double din sized radio. We manufacture a few at work. The chevy S-10 carries the same xm radio as the Allero but has a trim with square corners opposed to the rounded on the alero. A friend of mine recently replaced his stock HU in the S-10 with the eclipse 5.1 channel double din dvd player. The swap was a ferfect fit. To say that the alero is a din and a half is a mis conception. In reality it is a double din wth a odd sized trim.