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I have been following the forum for many years and just joined. Thanks for all the help! Now my issue: while restoring my 1978 regular coupe (produced in February) I found an odd black box module behind the left rear molded sound deadener in the storage compartment. It has 2 green, 1 yellow and 1 black wire. The greens go aft. The others do not appear to be connected. H619 is printed on the module. Anybody know what this is for? I have found no reference in the factory electrical troubleshooting manual for it. Any help is much appreciated. Closeup of the module-printing is upside down- actually reads H619 Left rear molded sound deadener where I found the module under the carpet
I will guess that it’s a relay. Where do the wires go to? Does your car have (or had) an electric antenna? I have seen a relay that connects to the speakers and when the radio is turned on,the antennae will be raised. Just a guess.
Thanks for the ideas guys. The car was factory equipped with power antenna and the wiring for it is the correct color code. The two green wires from the “box” both disappear into the body harness which leads to the tail lights. I tugged on them but they are not moving. The black wire was attached to a makeshift ground while the yellow wire was just dangling free. The rear speakers were done post factory and the wires for them run straight to the radio. I decided to just cut the box out and tape the green wires so I can continue with the carpet install. I really appreciate your ideas. CF is the best
Black box help
