Searched but I couldn't find a definite answer. Anyone know what size the rear speakers are? Some people say 5 1/4 and others say 6.5... Could use some recommendations for decent speakers for the rear too, don't need anything super great, just some more low and midrange.

 

Mine are 4". I just got new ones and installed yesterday. Make sure the tweeter is not to high or it will hit the stock grill that covers it. I had to cut out the grill to fit mine in.

 

6 1/2...

 

they are 4' thats if you use the rings but you can put whatever you want

 

6 1/2 infinity kappas fit just fine, but you need spacers. try to get metal ones, I got plastic ones from crutchfield and they flex way to much and have started to crack after about 1 year.