Need recommendations for 2007 front speakers

[Keepinitoldskool]

I wanted to upgrade the audio in my 07 eddie bauer. I have a 5ch infinity amp I will be connecting to the factory head unit. I wanted to replace the front speakers because they sound mediocre at best. I found 6x9 infinity components (with separate tweeter) for 80 bucks. I figured I would just enlarge the hole or make an adapter ring like my other fords.
After pulling out that atrocity that ford put in the front door, I realized it's bolted to the regulator assembly and there's a piece of metal behind it, not sure if it is part of the regulator or structural, but it is too shallow.
Can this metal be cut or do I need to find a shallower speaker? If so, what's a decent bolt in model?

 

[Keepinitoldskool]

**** it.

 

[Keepinitoldskool]

 

[Keepinitoldskool]

 

[Hamfisted]

Just threw some Fosgate 6x8 three way speakers in my doors to replace the stock stuff. Dropped right in ( shallow depth for clearance...). Huge difference in audio quality now. I wish I had done it a long time ago. They complement the Pioneer nav head unit like you would expect. Also just used the Metra plug harness adapters so I didn't have to do any splicing.


https://www.amazon.com/gp/product/B001P88U12/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1


https://www.amazon.com/gp/product/B08J4BMMXD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1