Only ones I can find are on eBay going for $25!! Never seen them in audio stores down here in Wollongong, then again none are what you would call decent :lol:
I have the Kicker L7 and it just fits under the cross member in the boot, so it works well having it screwed in with L brackets, although I did have to silicon the screws to stop them coming loose. I wouldn't really trust some bungee cord to hold that sub in place fanging through the RNP...