We got such a great response to our article on the iPhone holder for cars that uses the cassette deck, that we thought we’d write an article about a similar device that holds your phone using your CD slot in your car. We especially figured we should do that because we got a couple of questions asking whether there was a smartphone holder that uses your car’s CD player. There is.

Now, here is something that is just this side of brilliant. It’s a dock adapter that fits in the cassette tape slot in your car, and holds your iPhone 4s, iPhone 4, and any iPod that has a 30-pin adapter (sorry iPhone 5 and 6 users), and charges it. Of course, it’s not just an iPhone holder, it actually allows you to play your iPhone or iPod audio through your car stereo via the cassette player.