And after pulling my entire dash apart again this afternoon, and buying all the little odds'n'sods needed to redo the whole thing, I notice that the audio ground connection of the Blitzsafe is tentative, to say the least. How I didn't notice this before is beyond me. (Although it's hardly over-engineered). I'm now wondering if all the alternator whine will disappear if I simply correct this, and if I could have saved $30 on parts. Oh well, in for a penny...