ok so this is my first post, however i have gained alotttttt of knowledge from this forum. My ? is wil the polk db 651's fit in my 05 mobius ls without a gap from where the cheap boss speakers were. i seen a post about ppl having to cut a plastic ring to fill the space around the rim. i have also seen where they are direct replacement fits. but none of the post were about an 05 mobius ls. Thanks in advance for any input.