delta upload to the cube 0FI_AR_3

hi

i am uplaoding data to the cube 0FIAR_C03 using infosource 0FI_AR_3 for that only full upload is possible. one of the SAP Note I have referred suggets that it is not possible to delta uplaod to the cube 0FIAR_C03 using infsource 0FI_AR_3, To make delta uplaod possible to cube 0FIAR_C03 one has to use infosource 0FI_AR_4. but there also i can make full upload only. Can some one pl tell me which infosource to be used for delta upload to te cube 0FIAR_C03.