i need a few suggestions because now im replacing my stock speakers but im not sure what the specs are for the mids and what brands should i get.... as for now im looking to get some infinity 6x9s but i have no idea what size my mids are. also ive been looking for a mounting kit for a while but im not having luck on finding one... can someone help me as for where i can get a mounting kit for my car? and what are your thoughts about an indash... drop down in the back with 2 wireless headphones

 

also where is the third screw for the stock grill in the back....? the inner two are easy to remove however i cant find the third outer screw..

 

there are 4 screws to the grill....2 top and 2 bottom...cant miss em

 

For the 6x9's there are 4 screws, they go all the way around in the 4 corners. You have to removed them from inside the trunk.

Your front speakers are 6.5" in the door. I just replaced mine.

https://acurazine.com/forums/showthread.php?t=178913

 

As far as what brand to go with you really just have to go and listen to a bunch of different brands and go with what sounds good to you.

I have Polk Audio for the rears, mids, and tweeters. I bought top of the line Polk for the mids and tweeters b/c thats what you hear most as the driver. Then I bought just average Rears b/c those really are just fillers. I have a Pioneer head unit and one 10" JL subwoofer. They are being powered by two Alpine amps. So my stuff is all mixed brands but to me that provided the best sound.