It should. I was going to mount one in there, but found a better option for me anyway, sound wise....trouble is, I have to find a place to mount 4 horns now.
If I cant, Ill get another Stebel.
When I had the left side pocket/plastic out, it seems to me there was a nice area in there to mount one. Id imagine its the same on the other side.
Oh, and while we are on the subject, sometimes Harbor Freight puts them on sale for $30. Its called the Bad Boy there, but its the same horn. I had one from Murphs and two now from HF, all exactly the same....except the HF has a pretty chrome cover on part of it.