2003 Oldsmobile Alero Signal Flasher

Electrical problem
2003 Oldsmobile Alero Two Wheel Drive Automatic 60000 miles

The turn signals sound comes on all the time without actually using the turn signal switch. It is only the sound inside the cabin no signals lights outside.

I replaced the flasher switch, which was very hard to reach behind the dash. Unfortunately, did not solve the problem.

I do not know what would be the cause of this problem if it is not from the flasher switch? What can be done to resolve this?