Posting Date of FI docs created by BAI2 file

Hi all

I have question on Document / Posting Date of FI docs created by BAI2 file. We receive electronic bank statements (BAI2 format) from the bank wherein we have transaction date appearing in line 16 like this (151030 in the example below):

16,575,0000000054928,V,151030,0714,0000026990002,AUTO TRANS 26990002 /

Instead of using this date as the posting date (which we are trying to do), our system uses the date appearing in line 2 as the posting date (151102 in the example below):

02,985418136,000300032,1,151102,0714,CAD,2/

I want to understand where in config it is setup to use the date in line 2 as the posting date and can we change it to say use the date in line 16. That would serve the purpose. I'm wondering if I can get some help on that.

Thanks and regards

Moazzam