This app was really useful but now it only works in cars with a screen, my car is old so it's now useless. Thanks so much as I can no longer have maps and a phone call both coming through my car stereo, if using maps my phone call only comes through my phones speaker. I wouldn't be bothered if it was the other way round. And to add insult to injury I can't completely uninstall or GRRRRRRRRRRR