S13 Door Card Insert Upholstery by Toby Broadfield
I have officially found the ultimate method on the S13 door cards. First thing is to get rid of the OEM vinyl covering in the insert area.
Click the following link to read more: https://broadfield.wordpress.com/2010/08/23/s13-door-card-insert/
Purchase tools for this write-up here: https://www.amazon.com/shop/restomodninja?listId=30XN7LZ33WO93