I just recently hooked up a 300W amp to my two 12" sony xplod subs. I had it hooked up and wired for about two days. I started to tweek the levels on the amp and my lights just started acting like I was sending moarse code or something. I unhooked the power wires from the battery post and the lights are still doing the same thing. The wierd part about it is that the headlamps are the only things that are acting like this. I was thinking maybe that the previous owner of the car didn't run the hotwire for the stereo to the right spot. Then I unplugged the stereo and the headlamps are still doing the same thing. So what do you guys think that it is? Have you ever heard of anything like this before? I know it haS to be a short somewhere but where. THis didn't start happening until I hooked up the subs to the system.
So if your dome light is on it doesnt flicker? Nor does the illumnated dash panel or gauge pod?
And it still does this after the amp has been unplugged/radio off?
If you answered yes to all those then something with your electrical is wacked. I am not a mechanic but sounds like youve isolated the problem towards your headlamps. Check the fuse (it wont be blown but just make sure its sitting right).