for mobile using of ham radio equipment I was looking for a solution of fastening a " Palm Single " with a KX3 .
Palm is offering a special solution ( Paddle Base ) but this seems to be too heavy . So I had another idea . Please have a loook to this link
http://www.supermagnete.de/ger/Magnetanwendungen/Funkstation-modular?code=ATTPKLZHNAYXKBT
Another idea is to fix the mike on the metal case of your tax
vy 73 de Helge DC3SHL