[donporfi]

Use the advanced search feature and you will find a lot of posts regarding the installation of headlight relays.

Search for" headlight relay" with the Search titles only.

Or use these links

http://forums.pelicanparts.com/porsche-911-technical-forum/580948-jwest-headlight-relay-kit-question.html

http://forums.pelicanparts.com/porsche-911-technical-forum/861456-daniel-stern-headlight-relay-assembly-installation-thread.html

http://forums.pelicanparts.com/porsche-911-technical-forum/835080-headlight-relay-kit-more-factory-looking-alternative.html

There are many more.