88' 4runner
 

I installed a radio in my 88' 4runner n now my rear speakers don't work

Hmmm, something is not wired correctly. Time to start double checking everything you did.

What size are the rear speakers

You tell us what size they are. We cannot see your rig.

Giving you the benefit of the doubt here......is the fader on your head unit set to full front?

I hooked up my new speakers and now the radio won't turn on I checked the fuse and its still good