Slow Blinkers need help!

another thing to try is disable the ignition hook your volt meter to the battery terminals turn the headlights on and crank the car for 5 - 10seconds watch what the volt meter is reading if it drops below 10.5 volts while doing this your battery is weak and needs replaced . you basically are simulating a load test without the load tester by doing this . also watch how fast the voltage in the battery recovers if it is slow to recover or doesnt recover at all its bad if it goes up to atleast 12 volts within a minute or 2 its still ok as long as it isnt dropping below 10.5 volts. mopar alternators are kinda weak at idle the battery as well as starting the car acts as a backup for the electrical system during high draw low charge times such as at idle . if the battery is bad the alternator can not keep up with the cars demands plus charge the battery at idle . the result is battery wins lights lose because all power goes through the battery first then the rest of the car draws it as needed from there . but as mentioned above check all grounds first especially the voltage regulator . If needed you can run a wire from a bolt on the regulator to a grounded bolt on the alternator if they suddenly start working normal at idle either the regulator or alternator ground point need cleaned