Automate cross reference script Indesign

Hi All

I have to reference more than 600 part numbers to their respective pages in my cross reference chart. I've created text anchors for every part number and now going through the process of inserting the cross references via the insert cross reference panel - text anchor - part number.

I have a 100 pages to cross reference the process is proving too slow and tedious.

My question is there a script that will automate the cross reference page numbers without me having to manually go down the insert cross reference path?

Any input on how to get this done faster is much appreciated.

Regards

Mono