[ICOM] IC-207h

[W8BVH]

I want to extend my microphone so that I can have remote operation from my 
dash. I made up a cat5e cable but the mic won't work. Is there something 
that I am missing?? I thought that a straight through cat5e cable would work 
just fine. Obviously not. Any help here would be appreciated. A 100.00 bill 
or so seems too much to extend a microphone.
Thanks in advance for your help.
Ralph Howes
W8BVH