My son just bought an '08 350z and the subwoofer, amp, and plate were ripped out. We've located replacements but we no longer have the "pigtail" used to plug into the subwoofer amp. Anyone got a link where I could get one of those?

 

I will be installing the following and I am wondering if I should use two separate amplifier wiring kits, a power distribution block, or daisy chain the positive wire from the amp to the powered subwoofer in a dual amp power kit. Recommendations on wiring layout please!