I have a 2005 Honda Accord EX 4 DR Sedan. I still have my stock radio but put in two 5 way speakers on my back deck and two 3 way speakers on the front door. When i have my bass level on 4 and turn the radio up to 16 or 18, the speakers crack out. Does anyone know why?

 

i'd like to know the make/model of the speakers and see pics of your installation, or describe in detail how you mounted and wired everything. describe how you made connections.

thanks!