bracket

Alright so recently I installed (2) 3.5" neo midrange woofers into my dash, problem is, I somehow managed to install them so they are not centered with each other (Two images below). Stupid, I know. Now at the same time, I have to find a spot for (2) 25mm silk-dome tweeters. So I was wondering...

I no longer have the screws used to attach the bracket to the Sony XAV-AX100 head unit. The manual states that four screws of this size are needed: 5 × max. 8 mm (7/32 × max. 5/16 in) Can anyone tell me what size screws to purchase? I took the above specs to Ace Hardware, but they were unable...

I have a 2001 Ford Taurus and am trying to upgrade the sound system. All the speakers are apparently 6x8s even though the covers in the front doors are round. I did find a bracket that would allow me to put in 5-1/4s instead of 6x8s, but is there any advantage to that? Also, will the bracket...