Originally Posted by Hulk
I have two of these
, one in each Land Cruiser. You can get them from your local West Marine store (there is one on County Line Road).
This is what I use as well - very nice product and a good price ($40-50). I always run a heavyish gauge wire (6 or 8 awg depending on load and length) from the battery into the cab and to the fuse block. Make sure you include an in-line fusible link if you run off the battery. Then you can just run small wires from the block to the accessories.