Ive taken notice that shortly after installing a full set of hogtune speakers my front left speaker has quit working. I tried hooking up one from the rear since easier to take off and put back on then the other front. But to no avail it wont work either. Is there a way to check the connections before i think have to replace the stock radio?

 

Do you have a miltimieter? You can check for continuity with that. Take the wiring harness off the amp and check for continuity between the harness and where you plug in the speaker. Also try powering the speaker with just the radio.

If everything checks out, the amp is bad. If it speaker doesn't work powering it off the radio, the radio is bad.