vintage pioneer fm noise suppressor AD-307 (use on some radios  KP-500 TP-900 GEX-8 GX-5A KPX-9000 KPX-9500 ect. -

not for use on all pioneer radios -

only radios with the six pin din output shown in the pictures -

some early KP-500 TP-900 ect. radios do not have the din output for the AD-307 -

first picture of noise suppressor is what you will receive #55644-

radio not included -

open one is on my personal radio and was just for information purposes only -