8th Generation Honda Civic Forum - View Single Post - How to upgrade 2007 Civic Sedan EX
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Old 01-07-2008, 01:32 PM   #21 (permalink)
fox
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Join Date: Dec 2007
Location: Maryland
Posts: 509
i put 6.5" Polk db50 speakers in, which are now phased out and replaced with db51, but the front went in no problem, just drill new holes and used a mounting bracket that came from
Crutchfield. But the rear made all sorts of problems. I have an 07 lx by the way. The hole for the rear speakers is not a full circle. as you can see in this picture

i stole this picture from BATANG CITY JAIL from this DIY
DIY: Rear speaker + sub removal

This made some problems with the 6.5" speakers. There is another DIY on this forum on how to use the stock speaker incasement as a spacer for some clearence issues
This did help a lot, but i still ended up bending some metal to make it fit.
This eliminated drilling into the metal because i used the stock speaker harness thing and the stock screw that holds it in place (along with the clips)

After all that, it fitted pretty well. The next problem was putting the plastic cover on. on the bottom of the cover, there are walls (for lack of a better term) that enclose the stock speaker. look at the speaker grill in this picture and the walls that come up.

stolen from BATANG CITY JAIL from the same DIY as above.
my guess is that this funnels the sound out instead of under the deck. i used a utility knife, but i bet a dremmel would work better, to shave most of the wall down.
This made more clearance and enabled me to put the deck back on.
If your looking to save your stock speakers, and make for a cleaner install, then the smaller speakers would probably be better.
but if you don't mind doing some extra modifications, 6.5" speakers will be fine.
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