Ditto; under drivers seat. If the amps too big, buy a smaller one. Arc Audio makes some pretty darn small high output amps; along with JL HD series of course.Depending on the size of the amp most people put them under the drivers seat. If it is a larger am like an RF1000 you can easily do the "rear seat fold forward" mod and build an amp rack behind the rear seats. There is more than enough room for adequate cooling back there