Help with RDM6300

I bought some RDM6300 readers for a project. I can not seem get them to read.
I bought it here http://qqtrading.com.my/uart-rfid-reader-module-125khz-rdm6300-w-anthenna
And im using these tags
https://www.amazon.com/gp/product/B06XQ8VGTK/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

If anyone has any advise I would appreciate it.

I am using on a 5v arduino nano with it. Codewise I tried several things I found online but none seemed to work. The LED on the RFID board is lit.

Nevermind cheap wires.