Solution:

Obd or on the bench. 2 options here. Sometimes it goes via obd easy. If not then in the bench.

Petrol is usually ok by OBD. Diesel on bench. Normally.

You need with cs and pin. You just cannot proceed without PIN and CS.

Remove the kessy read the 93c86 and get pin and 7 digits cs. Then program it by obd. CS needs to precode the key then program it with pin code.

Just did one today.
1. Remove chip and read using APA002.
2. Dealer key
3. Load EEprom data
4. Make dealer key

5. Learn key

http://www.key-programmer.org/2022/02/15/program-porsche-cayenne-93c86-key-with-autel-im608/