I want to do a major upgrade to my '84 Porsche 944 front speakers. The front
door speaker cutouts is a small 4x6. It's very hard to find any decent 4x6
speakers that will fit in there. I must have tried almost every 4x6 I could
find, but not one of them pleased my ears. I am currently using a pair of
Polk MOMO 4x6 plate speakers, and they don't sound all that great either.
It's as if there's no bass response. The SQ could be compared to a
transistor radio. I think it's time to make some changes.

I was wondering if it's possible to somehow install a larger size speaker in
the front doors of an early 944? I don't want ovals either, I want rounds. I
would love to have 6-1/2" speakers in the front doors. Many 944 owners claim
that it would not be possible to install larger speakers in the front doors
because of a shallow mounting depth due to the window rail. I still think
it's possible.

What would a stereo shop have do to install a larger size, besides cut
metal? It's really the mounting depth that would prevent 6-1/2" from being
installed.

Thanks.