sounds like you had dirty contact AND the POD problem... you've solved one, but not the other. When you advance the film do you hear a loud "thunk"... this actually indicates you DON'T have a POD problem 🙂 If it's completely quiet when you advance the film it means the POD fallen off and needs a replacement. If you are hearing the click and you're getting a red light all the time at the START of depressing the advance, you still might have dirty contacts. Try exercising the camera.
- rotate the ring on the barrel back and forth, not to hard, just back and forth, back and forth for a while
- slowly depress the shutter (you should hear the meter engage with a staticky sound) and push it up and down without pushing it all the way down so that the shutter trips.
My GTN needs to be exercised like this for a while if it's been sitting a while. Eventually the red light only comes on when it should 🙂