Volvo Repair: 1989, 740 GL Radio Wires, lr brown, radio wires

Question
Hello, I brought a 1989 740 GL with a bad radio. I want to replace it but when i pulled it out all I saw was regular stero wires slice into the oringial car radio harness.  I have an adapter for the new radio but I need to know what are the numbers on the car radio plug.  I want to replace the home stero wires with store brought wires with the smae color codes.  What I mean about numbers on the plug is: 1= + red/blue front speaker.

Thanks


Answer
below are wire colors and what they are.

green battery power
black ground
red antenna power supply
blue RF -
white/blue  RF+
the left front uses the same colore whit and white/ blue so you will to try then then see if they are rigth by using balance

yellow LR-
yellow/black  LR+

brown RR-
white/black RR+