Hey there, i currently have two 10" Diamond Audio Subwoofers and an Alpine Amplifier that i would like to get installed in my 2006 BMW X5. Im keeping the stock Head Unit and im not touching the stock speakers on the doors and around the rest of the vehicle. So basically im only going to have power running from the amp to the stock HU and then back to the subwoofers. The X5 is on a lease and the last thing i want to do is screw up the electrical system due to my subs and amp. So has anyone out there installed any subs and amps in there x5? if so, did anything affect the electrical system? and also if you kept your stock Head unit, did you need any special piece of equipment to get you system to play properly?

bmur