I haven't heard of anybody using the location. The only amp I'd consider for that location would be one of Blaupunkt's class T amps due to their small size and very low heat output.
1999 Ford Contour SVT #900/2760 (SOLD)
2005 Mazda 6s
2003.5 Mazdaspeed Protege
1998 Ford Ranger 4x4