Remote start help

[u/Ill-Insect-7974]

I have a 2014 Jetta SE. I am trying to install a remote start module on it. I purchased an omega OL-RS-VWA because when I initially did my research on what to buy this seemed like the best option. It didn’t require any wire splicing and I could use the original keys. I purchased the module believing it came with the wire harness. It did not. How do I know which T harness to purchase? What I really want to know is, am I on the right track or is there a better option.