turn signal woes

[Ringnalda]

Have a 1989 Targa/Carrera widebody in the shop; looking for a likely culprit in the wiring to the turn signals. Hazard lights do not work, turn signals (either side) do not work. No lights come on when the turn signals or the hazard switch is pushed. Any ideas would be welcome. I have checked fuses 8 and 9 as well as changed the flasher relay under the hood. Thanks for any suggestions.