BATT+ should go to the largest terminal on the starter and should have a rubber cap. Whether "top" or not can depend. My 1985 CA 300D has a different starter than my 1984. Besides the hot side, verify BATT- post to car frame (resistance <1 ohm). There is also a ground strap from engine to frame on the driver's side, at tranny interface. Those connection can get corroded (sand the aluminum), but that strap would only disable the starter, not the dash.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans