Category Affinity in to Analytics

Unfortunately, I don't know much about Target... I don't know what all is available between Analytics and Target through the standard "stitching" functions.. but my brain goes to, with Target, can you make the category affinity available as a data layer on the front end, something that you could read and pass into Analytics directly? 

This would be something I would do with a non-integrated 3rd party system... try and set all the data I want / need in a JSON formatted JS object, then use Launch to read and process that data and pass into my analytics... I would hope that Target should be able to do something like that... in case you need to integrate it into some other non-Adobe system (like GA as a backup system).

As much as Adobe tried to make their systems work together, they do understand that their needs to be ways to work with 3rd party elements on people's sites.. so you could use the methods to integrate this additional data into your own Adobe infrastructure....

Unless someone with Target experience has a better idea....