This is for 996. I don't think Porsche changed the battery tray on the 997. Your radio code should reset itself as long as it is the original audio system. I think that started ~2002
The Braille has gotten very $$$$. The Duralast AGM is more reasonable.
Had to upgrade my battery after 2.5 years on Group 48 Replacement Battery - Rennlist Discussion Forums
I prefer AGM (Absorbed Glass Mat) Gel type batteries
I replaced an Interstate MTP-H7 With a Braille 7548 AGM battery - direct replacement.
Braille AGM B7548 battery group 48
BCI Group: [?]Group 48
Length:10.9" (277mm)
Width:6.8" (173mm)
Height (without posts):7.5" (191mm)
Braille Battery USA      Lighter • Stronger • Faster -
Battery sizes that fit 996 (group 49 will probably need a nut under the last, unthreaded, hole in the tray)
Group Interstate number Dimensions L x W x H Posts
48 MTP-H6 10-15/16 x 6-7/8 x 7-1/5 Top
94R MTP-H7 12-3/8 x 6-7/8 x 7-1/5 Top
49 MTP-H8 13-15/16 x 6-7/8 x 7-1/5 Top
Duralast Platinum/Battery
Price: $179.99
+Core: A "Core" is an item that has the ability to be rebuilt by the manufacturer using new replacement parts. Rebuilding these items helps to reduce product cost as well as aid in recycling efforts which helps the environment. When the old part is returned to AutoZone, we refund the core charge to you. $15.00
Part Number: H7-AGM