Ok, so after doing a McIntosh upgrade over the standard Kenwood cd/radio/tape deck in the Outback, I decided to make the most of the amp and hooked up a subwoofer to it. Rather than messing around pulling out rear panels and trying to line up another one from a Liberty, I opted to make my own custom enclosure and use one of the storage pockets to house the rear of the sub. As most people will know the stock sub in the Lib's is an 8" and going on recommendations there were only a few choices which seemed to work well with the McIntosh amp (from other owners and their experiences) I did some homework using the specs that others had recommended but as I was using a custom box I wasn't limited to an 8" sub and came across a JBL 10" on Amazon which shipped to Australia (arrived yesterday in under 2 weeks) After a bit of shaping and padding and upholstering I ended up with a tidy enclosure that doesn't interfere with accessing the spare wheel and tools and seats can still be folded down with no fuss I used some sound deadening to line the storage pocket and the enclosure before mounting the sub, I just have to make up a grill now to finish it off, the end result, this system has a great sound and the JBL sub is perfectly matched, (perhaps another option for others wanting to upgrade the stock sub) I'm really happy with the result