hk amp bad?
I replaced my stock HU with an Alpine cda-9831 about a year ago. I also have a n alpine sub and amp connected. Today, I seem to have lost the signal or power going to the factory amp. The sub is still putting out, but I am hearing nothing out of the other speakers. I checked the wiring from the HU to the wiring harness<no loose wires> How can I check to see if I have blown/burnt the stock amp or if its just a signal problem? Also I checked the 'radio' fuse under the hood<ok> Any ideas?