Just a note for the DIYer's:
When I swapped out my old battery, I worried about the window presets, and Tip
shifting memory being lost so.....
I made sure I had the new battery close to the car so when I quickly unbolted the
old one I could install the new one and rehook the cables all within 30 seconds.
Viola! The only thing I had to reset was the radio station presets!
So, if you work quickly and carefully a battery swap for the newer Boxtsers is a piece of cake!
On a side note: In 30yrs of working on autos, I have never seen a 7yr old battery
with absolutely NO corrosion on the battery terminals. I tip my hat to the Porsche Engineers.