74 Dodge Dart turn signal indicator

You need to buy yourself a copy of the factory service manual. The 74 is not available for free download that I know of. The 73 is over at MyMopar but the wiring is somewhat different. TS wiring, however should be same

The conductors for the dash indicators come right off the connector for the TS switch. Left and right front should each have two wires right at the connector, one going to firewall and one going to the dash cluster

EDIT actually the dash indicator branches ARE "sorta" shown. They are showing the light green branching off at the bulkhead, and the tan branching off at the TS switch connector, LMAO. I'm sure they connect at the same location, instead.

So Light Green comes in the page, goes all the way up the page to pin 6 of the cluster connector

Tan, LMFAO........comes off the TS switch, goes off the page to the other page, UP THAT PAGE a bit, then goes BACK onto the original page LOL, and on up the page to pin 7 of the cluster connector.