Originally Posted by stevem5000

I mounted a Sony under the passenger seat...I had to cut an area in the underpad of the rug...and I put about 3 washers under each back mounting leg of the seat to get enuf clearance, but the amp fit in nicely and I have almost 1/4" of clearance between the top of the amp and the metal bottom of the seat...the seat moves back and forth without striking the amp...

The particular model of the amp is in my signature...

However, I don;t think this amp will kick out 400 watts...I drive a pair of RE8's...8" subs, and for what I'm doing, it's fine...but it may be small for your 15"...

Hope this helps...

Steve