I need a little help. I am trying to install an electric fuel pressure gauge and an air/fuel ratio gauge. I am not sure on how to hook up the fuel sending unit, where exactally do I put the unit. I am assuming I use some sort of T-fitting to do it?

Also, the air/fuel ratio. It says hook it up with the wire from the O2 sensor. Where is the best place to find this wire?

 

Gee thanks for all the help guys. I got them in but the fuel gauge isnt working. I will just have to call the manufacturer. So thanks for all the help you didnt give.