Hey mate I just saw your photo of your sub set up in your ute. I have the same sort of custom box but mine is simply a sealed box like the one described in that thread and isnt ported into the cabin. I was just wondering how yours sounds because I'm sick of the fuel smell of mine. Is yours a 12"? And does it seal to the service hole so you get no fuel smell? Also, what is the mounting depth of your sub? Did your enclosure suit the manufacturer's recommended size? Sorry about all the questions but your help is much appreciated. Its a very neat set up youve got!