Has anyone cut out the 5.25" holes in the rear deck of your w123 to fit 6.5" speakers? It looks and feels like there is enoough meat around there to cut before the sheetmetal gets in the way. I've looked and listened to about all 5.25" speakers and none cut it for me. I need more midbass. My subwoofer totally overpowers the little 5.25". I know i will be fine with 6.5" speakers if i can make them fit.

__________________

First of all the holes in the rear are a weird size not exactly 5.25, more like 4.75. The other issue is that even if you put speakers in there they will never sound great as you are mounting in the thick cardboard rear deck that has poor baffling because of the sealed metal rear deck. The only way they sound good is if you cut large holes in the metal rear deck and insulate and vent into the trunk. If you have a sub in the trunk then you have problems with sub interfering with the rear deck speakers...

__________________
83 300CDTurbo 307,000
2005 Honda Element 266,000
56 Nash Ambassador Country Club Special 34,000(under restoration presently)

http://www.peachparts.com/shopforum/car-audio-multimedia/125099-123-install-extreme-dynamat.html

my rear deck is open to the trunk. directly below the speaker cutouts are holes through the sheetmetal deck.

__________________

So what did you wind up doing? I'm curious what you did in the front too.

I'm getting ready to do something similar. I haven't pulled anything yet but I would love to put my 6.5's back there.

__________________
AJ

1985 300D (SOLD)

Put some pictures up of what you did.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

I havent done anything yet.

__________________

I'm having the same issue with my 71 w108. The rear deck cutouts are closest to a 4x10 but more like 4.25x8.? Weird metric size, but oval not round. The best thing I have heard is to get adaptors. For mine I can use a 6x9 to 4x10 adaptor. It won't be a perfect fit but can work without cutting up my rear deck. You should be able to do the same with round adaptors for your application. I don't think it's a good idea to go cutting up that steel, deflates the value and kinda hard to do. As far as your deck speakers interfering with your sub, like someone said, I don't see a problem.

__________________
Just a head bangin' hell raisin' hillbilly man