Step 1: Strip the old system
Step 2: Upgrade speakers
Step 3: Covering/painting
solortex is an iron on fabric covering, available in black but im tight and skint..
Step 4: The electronics
i used a plug in headphone jack as the old system needed taking to bits if you needed to replace it (like when you fly over the handlebars at warp 6) hopefully this time it will just knacker the wire
Step 5: Making it all fit
luckily enough the bass speaker part of the ipod system had the amp buit in.. well lucky so i screwed the spare one to the top.. oh and gloves when painting, probably a good idea:)