Does the radio tuen off if u get the constant 12V from the lighter port? Bcs for example on my vw golf the lighter has power even if the car is locked so it would still pull the power
On this car the lighter port power is present only when the key is on the switch on position. It is Citroen... Your VW might have the right configuration for the ISO connection and might not need rearranging the pins. Just have to check the wiring harness diagram ;)