They make a strange pop sound. Its not really a pop, its really hard to describe. Anyway its just the rear speakers, and the first thought i had was i blew them. But i got to thinking, and there is NO way i could have! I noticed it today after school, i figured right away it was my speakers, so when i stopped the car, i went in the trunk and i could hear it coming from the speakers.
I havnt cranked the system up at all. I do keep the Bass at +4 which is the heighest level, but i dont crank the sound up too high.
I dont have a stock head unit or stock speakers. The HU is a Kennwood and the speakers are Panisonics. Any ideas what this could be?
When i turned down the Bass it was much less frequent, and might have stopped all together (maybe...) Is keeping the bass +4 bad? I wouldnt see why, or else why would it be there!

 

i had the same problem and it ended up the sauder had come off of one speaker and the connection was loose

 

It sounds like you definitely might have blown it. Try listening at lower bass levels, you should lose the "pop" noise. Maybe somethings stuck in one of them? I dont think so though. What happened to your amp/subs on the way? Did everything work out? Sometimes if you fool around with the wiring, things get messed up, so check that. Good Luck.

 

My new amp and subs just came, and im going to install them today. I looked really quick to see if anything was disconnected yesterday, but ill check again today in the light.