I have a 2004 G35 with: (7)Bose Component Speakers (1)PAC OEM-2 universal sound system interface and controller.(connected to 300/4) (1)JL audio 300/4 FULL-RANGE AMP (1)JL audio 500/1 SUBWOOFER AMP (2)12"Alpine Type R's (1)5 Band Kenwood EQ I was planning on getting Alpine SPR-176A TYPE R 6.5" COMPONENT SYSTEM AND A KENWOOD KVT-715 or KVT-815DVD 7" IN-DASH MULTIMEDIA.If i was to get all that installed would i need Dynamat or a Capacitor?