Turn Signal Indicators and High Beam Indicator Blink w/ Parking Lights On?

I plugged my cluster back in after doing the ammeter bypass and found that the two turn signal indicators and the high beam indicator in the dash will blink slowly when the parking lights or headlights are on. If the lights are off it doesn't do it.
1972 Dart non-rallye dash.
Has anyone run into this before?
Thanks,
Jon