Hi Ron. Sorry in the delay, your message went into my visitor profile instead of the inbox for some reason. For the 996, these work in the dash and also the rear, but only the rear of the Coupe.
There is criteria on the dash as space is so tight, do you use Facebook at all, maybe we can can have a chat on there?
The sets are £25 a pair in UK pounds, delivery to the states might be expensive, I'll have to check but maybe £11-£14, might make these a bit expensive for you, but I'm happy to post out.
My Facebook is
https://www.facebook.com/paul.adamson.98
Cheers Ron!
Paul