I have a 1996 GMC pickup.
Keenwood 450S radio.
MFJ Screwdriver Mounted behind the cab, 4ft coax, 4 ft control cable to the controler ran in a diferent route than the coax.
Power to the radio is run via # 10 flex conduit grounded at the battery with 1/2 braid 10'' long, through AN inductor made of # 10 wire 20' long, and conected direct to battery with power wir 6' long.
All doors,hood hinges,Tail pie 3 spots Are all grounded with 1/2'' braid crimped and solidered.
All this no help the noise is still so bad the radio is useliss while enjine is running.
Works great with out enjine.
HELP HELP HELP?

73'S KD5HLG