Found these mysterious wires in my Z

SouthArk370Z

A wire gauge chart (search for "AWG chart") will tell you diameter of wire, gauge, ampacity, &c (make sure you look for the number of strands in your wire as that will affect measured diameter). A dial caliper or micrometer will tell you what you have.

Edit: Some electricians/audio-installers can give you a close estimate by eyeballing it.

Edit 2: There is a power distribution block on the front left side of the battery. It may make a better place to attach the power wire than the battery terminal. Oops. Looked at the pics again and you are using the block. Doh!

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Vaibe

So do I need the fuse inline thing?

Also, another question about the first wires (http://i.imgur.com/uEvPU0P.jpg)

Seems like those are coming from my center console, which I think means that they're connected to the Pioneer HU or they're coming from the aftermarket Polk components that are installed in the doors. Would those hook up to an amp as well? Would the four wires be for tweeters and two components? Makes sense to me.. haha

RonRizz

Looks to me like the silver colored wires are rca cables...Is there a center conductor in there? and the 2 speaker wires would have been from an amp to your kickpanels, where you are likely to find the crossovers for the polk woofers and tweeters. The wires would split into 4 sets from there. The last single wire would have been your turn on lead

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