Radio help, calling all persons

Ok, I have these
http://www.ebairsoft.com/tactical-zsordin-headset-p-3502.html

This (Motorola 1 pin)
http://www.ebairsoft.com/element-military-standard-plug-version-p-2593.html

And these http://www.ebay.ie/itm/180856109210?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Now, the amplifying souds work fine, as does the transmission, however I cannot recieve any audio from other radios. I only hear a click in the earphones when they press the button to talk. What could the problem be? Wiring, compatability, the ptt?

If you can instruct me I can do some soldering if thats the case (With the PTT)

Thanks :tup: