Nice work. You are correct, the common misconception is that it's an amplifier, it's more of a built-in equalizer tailored for each vehicle's acoustics they are installed in. I've done a bench test with a matched head unit and Infinity speakers with the on-board "amp" using a relay to as a A and B switch to activate and de-activate the "amp". All I noticed was a difference in the tonal quality of the speaker, no volume change. So depending on any given vehicle acoustics, the "amp" or "electronics" on the speaker basket will either enhance or reduce the Bass, treble or midrange

Thank you for posting this! Excellent info!

Great info buddy really helped me out.

That's a nifty trick, to hold the speaker up backward so you can solder. I usually fiddle with coat hangers, not nearly as slick. I'm a little puzzled as to why these have suddenly picked up this noise. There was no change in wiring around the speakers. Do you think there was a change in your ignition spark wiring? Presumably you've got a component producing Radio Frequency Interference. Dodge made a TSB on fuel pump RFI for the 97-2001 trucks, and they use an RFI filter at the fuel pump connector to fix it. But that situation did not affect consumer radio, just the two way radio frequencies. Have you installed any other devices that might be giving RFI?

I have 2 tweeters in my truck that are on the right next to the seat belt. This is where literally all of my whinning noise comes from. I have this same issue. How ever I just threw 1000 watts of amp and subwoofers in it and now I over power the sound however the sound is really load while not plaing music. I am curious as to what will happen when I disconnect the tweeters.

If you would like to fix it for real Pull the head unit and hook the body ground back up to the replacement head unit.

It’s a ground problem

Auto Parts Warehouse is looking for KZfaqrs to partner with to do product reviews and installation videos. Can you PM us your email address so we could give you more details. Thanks!