I bought a 2015 Scion tC 2 months I want to take out the stock in it but I know that they are connected to Amp and they component speakers so I was wondering if y'all had any ideas of what speakers I should buy?
Because I already have a Sub connected to the car I just speakers for my highs and mids!

 

Hey,
I actually just upgraded the front woofers (6" x 9") in the doors and the back speakers (6.5") in my 2015 scion tC. There are great instructions from OEM Audio on upgrading each of the speakers, but they require specific mounts, as the holes aren't standard. Here are the mounts for the 6.5" from amazon:
And here are the adapters for the 6" x 9" on crutch field:
Metra 82-8146 Speaker Mounting Brackets Install 6"x9" speakers in select 2002-up Toyota, Subaru, Scion, and Lexus models at Crutchfield.com

Installation instructions can be found here, and note that the front speakers are riveted to the door:
http://www.oemaudioplus.com/images/I...F-20110726.pdf

Let me know if you have any other questions. You'll definitely want a pry tool to get the door clips out, and also check out the following wiring harness from crutch field, you'll need this to connect to the factory wires without soldering:
Metra 71-035LC Speaker Wiring Harnesses For select 1992-up vehicles ? adapt new speakers to the factory wiring plugs at Crutchfield.com

 

As for speakers I went with these in the front:

And speakers in the back:

I think the three way definitely helped with the mids and highs from the back seat.

But these are a more premium option, and match the series of the ones I got in the front:

 

I don't presently have a sub in my system (though with the new woofers the mid bass is bumping), what sub did you install or have installed?

 

If you're looking at replacing the component speakers, the middle speakers in the doors are 4", and I would look into something like:

But I haven't been able to find a mount for these, so you might have to construct one or improvise.

The top tweeter is 1", and maybe something along these lines would work for you:

 

I installed 10 inch alpine type r 2omhs it's sound pretty nice but in my Corolla I had two tens and I have the infinity primus speakers in it so I was thinking of getting inifinity speakers ! Infinity as the brand that is made harman which is made by jbl lol !

 

Do you have amp connected to the speakers ?