You can use an old school coat hanger for a needle.
I use a length #9 stainless wire, slightly sharpened on on end and looped on the other for a needle eye. strip the wire back about an inch and attach it to the eye. You can bend the "needle" to conform to shape as you guide it.
If you are going to install double cord wire, shorten one side a bit for a better install .
Add a little electrical
tape to secure the wire to the needle.