depends on how much you want to spend and how much you like your music. I wanted a basic install using the panels already in the car as i didnt want to add loads of weight with mdf and still wanted the boot. In the boot i took off the rear side card that covers the roof mechanism used as a template and created a stronger one trimmed in black to match the original this houses a 500 watt kenwood 4 channel amp and is kept in place by the original clips. the right handside sits a 4inch bose sub with an internal amp at 150 watts. The floor carpet was taken out and a mk2 carpet retrimmed to suit as this is heavier pile carpet better and reinforced underneath better sound proofing. The shelf was taken out gutted and remade using plywood, sealed recovered in the same carpet and trimmed underneath in sound proof material. the boot hatch was internally sprayed with waxoil to reduce the drumming effect on the metal and the square holes in the door skin blocked off. Number plate remounted on rubber washes to stop it shaking. You can enclose the whole boot off and set some 10 inch subs in there, do a search on google for golf cab i am sure there is a green one on there with a step by step of how to fit in a sub in the spare wheel section.
