Aux in Lead

[ahd91]

I've seen a variety of solutions for getting music into the car, mostly the box units that allow you to control the iPhone to some extent using the car's controls.

I have no interest in this however, and just want a 3.5mm jack. Is the following item going to be suitable? Will it have the same sound quality, or would one of the Connects2 units be better?

As you can see, I have next to no ICE knowledge.

http://www.ebay.co.uk/itm/Audi-A8-98...-/171385558835