
ok i just been to check the wiring in my car soo assuming that picture is the socket on top of the sub here are the wiring details
description of wire colour
1, Live red
2, auto antena (switches sub on) white
3, earth black
4, drivers side rear speaker blue red
6, drivers side rear speaker blue white
5, passenger side rear speaker orange brown(maybe black)
7, passenger side rear speaker orange green
as you can see i have not listed if the speaker wire were the + or - wire as this i could not see. i have takn these detals straight from back of my car by visual looking. the colours are the origional fiat wire colours and should be pretty accurate how ever there was low light at time and the one marked white may have been a light yellow. also the red power wire may have had a black stripe but i couldnt see all way round teh wire.
this should help you. oh you also ned a fuse in top of the sub but forgot to check the rating
2001 Punto sporting in sprint blue with matching Mr Bump air freshner all together now mmmmmmm