Have a 2008 cadillac srx need to know how to install a cigarette lighter

Scroll down to the sockets. They also make some that screw in under the dash. You will need large enough wires and fused.

Minute Man Electronics Cigarette Ligher Plugs and Sockets (http://www.minute-man.com/acatalog/Online_Catalog_Cigarette_Ligher_Plugs_and_Sockets_ 272.html)