I have a GD Active and quite often sit for hours listening to the radio without the engine running. Not a problem.
Thank's Doggie 1, that's good to know. Next time I will give it a go. Only thing I wondered about was if the navigation system on the i30 Elite would still be active with the radio on, guess there is only one way to find out. I know when the daughter was setting up the GPS on her i30 the warning did come up about the battery but of course the GPS was on then.