jack to jack cable into my stereo aux input. Everything works ok, and I'm a happy boy.
There is however a predictable fly in my proverbial. The app chews power cos it's using the gps a lot, but when I plug my charger in, the sound stops. I presume that this is cos the phone thinks it's been docked and is trying to play the music through the cigarette lighter. This has never been a problem with my iPod classic when used with the same set up. The charger is a basic Logic3 jobby.
Any ideas how to solve this?