Originally Posted by FrankWhizzite
I know my 2009 impreza 2.5i holds 6 1/2" speakers front and rear, but are shallow-mount speakers needed or recommended when replacing for an upgrade?
Long story short:
Crutchfield will only say that something fits if they sell/carry the appropriate adapter. Unfortunately, they only have 1 adapter type, and it sucks.
They also state that MANY perfectly-acceptable speakers will not fit in many cars where they fit just fine- as long as you get the correct adapter.
Don't let what Crutchfield says will fit limit what options you consider. Even my Polk dB651 coaxials are a "don't fit" application, according to CF. The dB651s
model fits (according to them), but not the non-slim version. When I ordered them during a crazy sale last year, I had to call and have them force-order them for another vehicle since the online ordering would not let me put my car and the dB651 model together (meaning I would not receive the free wiring harness).
That said, I have had the regular version in the back of my '11 WRX for over a year.
For more info on adapters and a how-to on the installation, check out