As always on top of the device itself. but with the frame I had to support the lower mount. Otherwise, the radio "Spro +" did not insert into the frame. Perhaps with SS3 this will not have a difference. In addition to this lack. Recommend. Class. And the markup lines turn. And the Internet keeps well. Everything suits
The head device cost 22 tons. The installation did not take much time, although the frame of the Tuareg had to be peeled up as they write in other reviews with a file (this is the only drawback to fix The sound became more difficult and detailed than in 550 head, this is a fact! On work there will be additions, I will necessarily complement the review! In general, everything works well. There are some shortcomings, but they can be solved with those support or with the help of the Internet. I recommend this device!