What speakers to get for my 2006 Ford Fusion?

I just bought a new pioneer stereo and pioneer subs, I'm wanting new speakers now too. I have 4 door speakers and 2 in the back dash i don't know if that's all. I don't know a thing about audio so if anyone knows any of the sizes or how many I actually have that would help so much! Also how much do you think it would be for a nice set?

I have a knock on rear passenger side what is it?

I have changed the shock absorber as it was worn out. Now if anything the noise has got worse. Is the a bush type thing that the top of rhe shock sits in to stop the knocking?
Its a 53 plate ford fusion 1.4 petrol

My car is making a squeaking noise by front wheel well?

I have a 2006 ford fusion. It has been making a high pitch pulsing squeaking noise by the front passenger side wheel well. I only hear it when the car has been driving for a while and is warm. It seems to quiet when i brake, but returns when i let up off the brake. I don't believe it is the brake pads or the rotors. The brake pads have 90% left and the rotors were resently resurfaced. The noise was present before replacing them and is still present.

Added (1). Not sure if it is related but my drive belt also makes a chirping noise upon start up when the engine is cold. I replaced the belt not too long ago. It stopped making noise for about a month then started again. It makes noise for only about 2 minutes in the morning then its good until the car has cooled completely off. Is it possible that the two could be related? Could one of the pulleys be bad causing it to make noise upon startup and the noise that I'm hearing by the wheel wheel when warm.

Trade in car but 7 grand upside down?

I have a 2012 ford fusion that I owe 19k
on but it's only worth around 13k.
I'm looking at trading it in for a 2014 chevy silverado. Sticker price on that is 40k but they have 11k on rebates so we'd end up paying about 29k plus tax, title, and license. Kelley Blue Book says this truck is worth about 30k for private party value.
Would this work in getting rid of that negative equity?

Since it is Saturday we didn't talk numbers or anything yet but i'm guessing/estimating all together with interest after they finace it we'd be paying about 39,000 if our notes are about 550 with an interest rate of 9%, which is way more than blue book so does that mean we'd be upside on this vehicle too?

Any help or explanation would be appreciated.

How to set my car to play music through my phone?

I have an LG G3, and my car is a 2007 Ford Fusion S.
I have an auxiliary cord in my car already, but every time I hook it up to my phone, it just plays the music on my phone instead of through the Aux setting. I don't have a Bluetooth button on my car, or it I do, and I can't find it. I was wondering if there's any way I can set my car up to play the music on my phone, because of the fact that it's not working on my auxiliary.

Which plug-in car would you buy?

If you wanted to buy a plug-in car and price was not an issue, which one of the follow 19 available today would you buy?
1. Nissan Leaf
2. Chevrolet Volt
3. Cadillac ELR
4. Chevrolet Spark EV
5. Toyota Plug-in Prius
6. Toyota RAV4 EV
7. Ford Fusion Energi
8. Ford C-Max Energi
9. Ford Focus Electric
10. Tesla Model S
11. BMW i3
12. BMW i8
13. Smart ED
14. Fiat 500e
15. Porsche Panamera S-E
16. Honda Fit EV
17. Honda Accord Plug-in
18. Mitsubishi i-MiEV
19. Mercedes B-Class ED

2011 ford fusion road noise?

Can someone tell me if they have had this issus with a 2011 ford fusion when slowing down I hear a lot of road noise I have been driving a 1998 ford Taurus for 14 years and never hear this type of noise could it be it is a smaller car or do I need to take it back we have a 4800 warnety or is it just in my mind help and thanks.