Hi I am new to the forum and car audio.
I bought a Del Sol with JBL speakers and amp couple months ago. Last week, the power window stuck and I removed the door panel and speaker. I am stupid enough that forgot to turn off the stereo. When I put the speaker in, maybe something short circuit? All the sudden, there is no sound from the stereo. Then I turn off the power and completed the installation of the speaker and door panel. Now when I start the stereo, when I turn the car on, not yet start the engine, there is some whining noise and other noise at the background. If I start the engine, the noise getting worse.