I have a 98 honda civic, i changed the radio and now only the rear speakers work, the car is completely stock (but radio) no amp.Solution?

I have a 98 honda civic, i changed the radio and now only the rear speakers work, the car is completely stock (but radio) no amp.Solution?

Read more: I have a 98 honda civic, i changed the radio and now only the rear speakers work, the car is completely stock (but radio) no amp.Solution?