Eww don't use non-electronic LOC's. They are junk. I tried 3 different ones on my stock unit and they all clipped much sooner (well, they actually clipped...and my powered LOC's don't)
Get a PDLC21 for like $35 shipped.
I have one, and it's metal-case clone, the cache cloc+d on my stock unit. One goes directly to sub amp and the other goes to my crossover, which splits one RCA into a mid and high output for my 4 channel.
It has a line driver built in so it will give you proper RCA voltage as well.
I just put one of these pdlc21's on a 2v sony unit just as the line driver function and it made a huge difference.
The unit itself has auto detecting turn on, so you don't need to run a remote wire.
These are the exact same units, one is simply metal and has the lights on top.
PAC PDLC21 2-Channel Intelligent Digital Line Output Converter - Walmart.com
And on top of everything I've already mentioned, the unit comes with a built in in-line fuse holder and 2a fuse, so all you have to do is find a power source for it. (and considering it only draws 2a, you can use any thin wire that is close)
Bc2000d - jvf FI BL 15" - s800/4
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