Front Speaker Window Rail Interference

[tGDF98]

Hi All,

I've recently sound deadened my front doors and now considering replacing the stock 8" woofers also. My only concern is the stock speakers are quite shallow, this is to not interfere with the window rail thats sits behind the speaker housing.

What is the max depth speaker that space can accomodate? I have seen others using a 8" to 6.5" bracket and fitting what appears to be aftermarket speakers with larger depths than what the space would allow.

Any help would be appreciated

Thanks