Blaupunkt 300 radio installation

[greenkb]

I'm wondering if anyone can give me a hand. I've recently bought an astra and the guy gave me the original blaupunkt 300 radio for it but he had a new one put it. in order to have the new on put in, halfords cut all the non-essential wires. does anyone have a picture or directions on how and which wires go where on the back of the radio.

all help appiercated

greenkb