Blaupunkt ISO connectons

[Raaid]

Hi - Would appreciate help on the ISO connections to my Blaupunkt car radio - Model BP6340.
The radio is from a Nissan Micra - now gone - so I need to know how to wire the radio up in another car.
The layout of the radio connections is shown on the image: -


Where do I connect the +ve, earth and front speakers?

Thanks.