brake lights

I have a 94 s10 blazer, 4 door, 2x4. My turn signals, reverse lights, & the third brake light all work but my brake lights do not. I got the bright idea to simply wire the 3rd brake light to the other 2...now my brake lights work but the turn signals only work when I am not on the brakes. Hit the brakes and the turn signals stop working. Anyone have any ideas?:eek7:

i would start by changing all the wireing back the way it was, then check the wireing to the break lights, sounds like there might be a bad ground or lose connection somewhere in that wireing.