[Icom] Mobile Noise Supression - Final Chapter

[Davies, Doug A FOR:EX]

As some of you may remember, back in August I posted a plea for help to
solve the vehicle noise problem(s) with my IC-706MKIIG installation a 2001
Toyota Tacoma V-6 pickup.  I thought I would post a follow-up, for those
that may be interested.

From all of the replies I received, I tried out all of the suggestions to
solve the problem(s).  To date, these have included:

Power to rig goes directly to battery with fuses in both lines, both lines
have snap-on ferrite beads.
Bonded all body parts to the frame
Bonded engine block to the frame
Bonded exhaust pipe to the frame
Put large value cap (40,000uF@100V) across alternator terminals.
Put filter in pos. alternator line
Put filters in both lines of the fuel pump
Put large snap-on ferrite bead on wire bundle exiting main computer.
Put snap-on ferrite beads on both ends of antenna coax.
Put ferrite beads on both ends of antenna adjustment power cable.
Checked that spark plug wires are silicon low emmision type - they are
Checked that plugs are resistive type - they are.
Went to Toyota dealer and asked if they could help me troubleshoot - they
basically told me to "stuff it".

So, the bottom line here is I've given up.  As I see it I have three
choices, put up with the constant S-7 noise level, pull over and stop if I
want to have a QSO or tear out the whole damn installation and sell the
equipment.  I have run out of ideas and suggestions to try.  If some has or
knows someone who has a similar installation in a Toyota, and they have
solved the noise problem, please let me know how it was done.  

And, If you are considering operating mobile in that new vehicle you're
planning to buy, don't buy a Toyota pickup.

Doug  VA7DD