i replaced shaker 1000 with jvc-kw avx800, both sets of 6x8s with pioneers and i kept my original subwoofer box but replaced the woofers with memphis audios. i run a 500w fosgate on the rear subs and a 1000w fosgate 4 channel on the other 6x8s. the 8" front subs i left alone. thats as custom as...