Installing the Dice in my 2004 X3 was a effortless. I watched the video on youtube beforehand and I recomend it. Great sound, great company to order from and great help from you dudes and dudettes. For all that are mechanically challenged as I....this was insanely easy. Now if I can handle the 30K inspection coming up....Thanks again for all that have contacted me....BTW I was in a hurry to install because I was taking my first road trip in my new vehicle to New Orleans .....NOTHING DRIVES LIKE THIS MACHINE.....I ALSO GOT 22+ CITY AND HWY MILAGE.....COULDN'T BE PROUDER!!!