Need Help

[Dave scioscia]

Hello. I have an 02 gt I blew out a all my lights and blinkers hazards installing a radio I have gotten most fixed but still have no blinkers or hazards I have changed the mfs and the flasher relay I am stuck and if I put a relay out of another mustang nothing works when the after marker is in everything works but the blinkers/flashers
I don't know if the plug works anymore to test your mustang under dash either any help would be welcome

 

[wmburns]

I'm assuming that all fuses are confirmed good. If so, I would start by checking/testing the ground behind the center console. This ground is shared by multiple devices including the ODB2 port, cluster, GEM, and radio.

 

[Dave scioscia]

All fuses are done. Before everything blew I had no problems it was caused by an overload from radio install