Normally, my understanding is that power to the radio is cut when the ignition is turned off.
I am looking at installing a normal computer in a car (not an Android) and the problem is that if you suddenly cut power to a normal computer, it can cause data loss and other problems.
Therefore, I think what I want to do is set it up so that the car is always supplying power to the computer, so long as the computer is turned on. (Obviously, this would cause the battery to get drained if the computer is accidentally left on.)
Is there an easy way to do this on a Volvo 850, or not really?