7th_gen_celica, he said 1600 WATT... that location will kill his amp with so much heat within the first hour
1600watt xplode, so I'd guess 500 wrms tops, under the seat is ok as long as there is about 2 inches of room so it can cool itself. The back of the sub box is ok as long as it is a well braced box and the amp isn't on a weakspot the the middle of the back...