Piece of cake! Other than Interstate (who's battery I wouldn't use if they gave it to me for free and came and installed it, cleaned the car, the garage, the house inside and out) you can get them other places. We bought one from Batteries Plus and it starts like a champ every time. All 2005's are due for a new battery and yes they die in a matter of minutes. We were actually testing the electrical system at the very moment (after having drove it the night before) it was biting the dust. Was almost comical, had the WTF looks on our faces. Lucky for us it was in the garage not on the side of the road or in some parking lot somewhere. After arranging a replacement via Firestone (they carry Interstate) and getting excellent service from them through out the "Interstate debacle" we bailed and went to Battery Plus. Other than the battery being black, not OEM white it's a perfect fit.