Yaris Sedan Deadening and Sound system upgrade

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What TOLMACH is referring to is the live posi wire if you ever get into a wreck that knocks the battery and/or wires loose.

It's an even easier fix than spending the money that he did for the car audio fuse and holder. You can go to any auto parts store and buy a heavier Amperage fusible link. That will allow you to run it inline like TOLAMCH did yet have just as much fusible protection as you need and have a smaller sillouette versus using the car audio fuse solution.

Note, either works.

As for "unprotected"...that's a bit of a stretch. Like D mentioned, the clear sleeving offered from the wire itself is usually sufficient in the Yaris engine bay. Techflex, like what TOLMACH, is using is purely for looks. The techflex offers no true protection other than an easily melted layer of more plastic. I mean really...you use a hot knife to properly terminate the ends...