Hi Cotty,
This is Kendall (aka Cool Tech LLC). I suspect you may have read about the float charger on the websits. In answer to your question, we locate the small bracket in the front nose of the car where it can't be seen. The 2005 cars have a mesh grill that prevents the bracket to fit. Accordingly, no bracket is included in this kit and we advocate simply zip-tying the connector right next to the tow-hook threads.
As you are likely aware, there is a multitude of good FLOAT chargers out there. We happen to use the Battery Tender brand and never had ANY trouble but there are other good brands as well.
The OEM charger DOES work suffiently, however, in my opinion it is not ideal. Unlike aftermarket units, the OEM unit presents a constant, albeit small, current to the battery at all times. The aftermarket units (including the one we offer) "floats" on and off as needed and also gives you a nifty visible indicator to let you know what it's doing.