A:AnswerThe radios wiring has the orange illumination wire. As long as this is connected to the vehicles illumination wire then yes the radio will dim when you turn on your head lights.
A:AnswerTo check into a harness kit or adapters for the installation it would be best to consult with our Best Buy installation team. They have access on looking up this information.
A:AnswerI had mine installed at a Best Buy in ohio two months ago. The installer had it in in about 40 minutes. I suggest you go to your nearest Best Buy store and talk to them. There could be an error on the website.
A:AnswerI bought this online and went to the store several days after I received the product. The store did a return and repurchase of the stereo and install was free. I'd suggest you check with the store or at least print out that your purchase includes free installation at the time of your purchase.