Turn signal/backup lights fuse blows immediatley upon inserting new fuse in panel. on 1995 Oldsmobile Cutlass Ciera

Turn signals and backup lights stopped working and replacement fuses blow immediately (key off)upon installing a new one. Replaced R/F turn signal assembly as thought it was the problem, wrong thought. At first the right side blinkers stopped Any help is appreciated.

Asked by for the 1995 Oldsmobile Cutlass Ciera