Sorry if these pics turn out huge!
Right, this is how i wired mine, its just an idea, but worked really well:
![](http://i4.photobucket.com/albums/y138/GordonsAndTonic/Subfin2.jpg)
I cut gaps in the bottom of the baffle as you can see, then ran the wire round the very edges and into holes in the top of the triangle.
The gaps my be cut very tight, and you have to block them with something. I used silicon and heavy duty filler in the end, and the gaps are still plugged solid. Also having binding posts makes it so much easier placing the sub, and transporting it.