When I picked up my trike last week, there was a extra envelope type pleather puoch in it. Dealer didnt know what it was for. Has two holes
in the back for mounting. But where?

 

I would like to know this also, been looking for where it goes and the dealer had no idea either

 

Mounts in the trunk to hold owners manual and other papers like registration and insurance information

 

yes, mines in the tourpack.. should be 2 bolts sticking out either toward the front wheel or toward the back.. slip the pouch over them and add a cap nut to tighten them on

 

Mine on a 14 is mounted on the rear of the tour pack

 

see the 2 bolhttps://www.hdforums.com/forum/attachment.php?attachmentid=397980&stc=1&d=1410115 444ts on the left sticking out, that's where it goes

 

No, that's where the zippered one goes, the manual goes in the zippered bag.
This one is not zippered, it pops open and closed, it does have two holes to mount.

 

Mine is a 2014 and the pouch is zippered, on past Ultras the pouch poped open like you stated and still mounted with two bolts but on the front inside. maybe you got the wrong one?

 

I have the zippered one installed from the CO.
But there was this extra one just hanging out back there, the type that pops.

 

Yep, same here, on backside of the bottom of tourpak.