Wiring diagram. - GBodyForum - '78-'88 General Motors A/G I really need a good detailed wiring diagram for a 1979 El Camino. The previous owner screwed with the wiring under the dash and I am having a little bit of trouble figuring it out. Anyone have a diagram of the dash wiring and components? How do I find a wiring diagram for 87 El Camino? - Answers How do I find a wiring diagram for 87 El Camino? Answer. Wiki User October 24, 2008 12:26AM. You can buy a Haynes Manual and it will have the information you need. Related Questions. Wiring Diagrams 59-60, 64-88 | El Camino Central Forum El Camino Wiring Diagrams 1959-60 1964-88 Click Thumbnails To Enlarge Images 1959_1 1959_2 1960_1.. Search "" across the entire site Search "" in A forum community dedicated to Chevy El Camino owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, and more! Full Forum Listing. 1987 El Camino Factory Stereo Wiring Diagram | El Camino 1987 El Camino Factory Stereo Wiring Diagram. Jump to Latest Follow Wiring diagram robertm, Nope, the 87 didn't even come with the rear speakers connector , go find a caprice of the same era and pull the plug and wires and your good to go. Show Full Signature.