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In Reply to: Joe, yes, for the rear install, as well. posted by RickOregon on March 03, 2002 at 23:38:55:
Rick et al,
6-1/2 Dia Rear Speakers
At first, I decided to use 6-1/2 speakers in
the rear because I thought they would install eas-
ily. When all was said and done, I had to modify things so much that I may as well have installed
6" X9" speakers, which give better bass response.
The main problem is in the way the stock rear speakers
are mounted in the rear shelf. They are shallow
speakers, and are set into the trough that carries
the interior air out of the car for the flow through
ventilation.
In order to make a clean mounting (i.e. without
using an ugly looking spacer on the top of the rear
deck) of a modern deep speaker, you will have to cut
and modify the sheet metal of the rear deck. The same holds
true for my "hidden subwoofer" mounting. If you
wish to do this job be warned it involves some
serious sheet metal work if you wish to maintain
the flow through ventilation quality of the car.
First, remove the rear seat bottom and back (it's
a money making venture, this), then remove the "C"
pillar iterior trim peices, next comes the rear
deck interior panel. Now remove all the purplish
"jute" sound deadening. Climb into the trunk and re-
move the foam pad on th underside of the rear deck
Now you should be able to figure out how the flow
through air is collected at the base of the rear
widow, then carried to the sides, the up and out
the rear "C" pillar. You will also see the trunk
support torsion bars.
Temporarily put the rear seat back in place and
locate the new rear speaker hole template where it
will do the least damage to the ventialtion ducts
and the magnet won't hit the torsion bars below. You
should also try to stay as close to the holes already
in the rear deck sheet metal and interior trim
as you can. Usually This means putting the speaker
so that the grille is up against the seat back.
Now you cut the sheet metal in the bottom of
the original speaker hole which is about 1-1/2"
below the rear deck sheet metal)only as much as
you need to for the speaker magnet (which is us
ually a smaller diameter circle than the template cut out hole is.
Next, cut the sheet metal of the rear deck only
(do not cut the bottom sheet metal of the OEM
speaker pocket) using the template as a guide.
You then bend the sheet metal of the bottom of the OEM
speaker pocket upward to form duct work for the
fresh air flow through system. And now the new
speaker's back side is in the trunk instead of a
speaker pocket as before.
As I said earlier, I I'd known I was going to
be carving up the rear deck this much, I would
have went with 6"X9" speakers instead.
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