inpedance adaptor for ts prc 148

[bulletman]

Hi I'm looking for a impedance adaptor for my toy soldier prc148 I've bought a real 3m peltor ptt it works but these a lot of feedback coming through the set and headset when I'm using it I've a set of TRI comtac lll that I use they work with every other real ptt I use with the radio . I'm just wondering if anyone has had the same problem and who can point me in the direction of how to fix it .
Cheers
Carl