I have a problem with the stock Monsoon system in my 2001 Buick Regal. At low volume, all speakers produce sound. Turn it up, the RH rear speaker clicks and cuts out. The rears were replaced with Infinity Kappa 2 ohm, same impedance as originals. I crossed the RH plug to LH, and vice versa, to rule out speaker problems, and the LH speaker clicked and cut out. The system had never been touched prior to the replacement of the speakers. Also, the stock amp gets quite warm on one side.
Does this sound like a HU problem, or a wiring problem or??