Yes was an option ( lighting package A01 ) which included the fender top turning signals and some other stuff. Is actually just a LIGHTS ON buzzer, not really headlights, since actually buzzes with Parking lights.
The plug is there ( an angled one with black wire and a black traced yellow one ), need to get or make ( easy really ) the pigtail to reach the correct location on dash frame.
Buzzers are available on ebay. I have 3 I can rid off since my car is 74 and is totally diff, but I'm in Venezuela LOL.
http://www.ebay.com/itm/NOS-Mopar-1...zer-/311119051763?hash=item487023fbf3&vxp=mtr
That is one of the ones available, but there are more. I bet if you go to a JY will find someone in working order.
This is another one which is exactly the same unit but the bracket in another position ( this is actually the ones I have ):
http://www.ebay.com/itm/NOS-Mopar-1...lay-/311132942674?hash=item4870f7f152&vxp=mtr
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this is the "diagram" from the 71 wiring section of manual ( same up to 73 )
View attachment 268656
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If you don't care for the correctness of the bracket position we can make a trade for one of the buzzers... I'm needing an Iphone 5S belt case
. I send to you one buzzer and you send me the case I want ( which I think is around $10 ). Buzzers are NOS still on boxes and tested. Just with some surface rust on small areas