Recommend me some rear speakers

[mooseknuckle]

So i just got some new components and will soon be getting a new amp to go along with them. Lastly i will need a set of rear speakers. I have an 05 mustang coupe that says the rear speakers are 6x8 or something smaller with a bracket. The front components are cdt hd61's and i will pair that with a mmats sq4100 or 4160.

So what should I get to go along for the ride? I want something durable that can be played loud. I was thinking about just pairing some cdt 6.5's or something equivalent. I dont really have a price range but id like them to be inexpensive if possible. Under $100 for sure. So what am i looking for?

[mooseknuckle]

No suggestions. Some 6x8 or smaller with adapter plate speakers? About 100w rms and above. Someone surely has a decent opinion lol. Its probably my post....

[Vertex Audio]

Some CDT CL-6ex would work out great. Those things can take a beating. We were having a sale on them. $75 shipped. They are bnib.