Well,

I was reading previous posts, and one person said that they had a Z3 with HK system and the empeg. And their solution to the engine whine was to use the grounding RCA's at the Empeg and ground it to the sled of the empeg. Guess what? IT WORKED! I was amazed, and the whine is gone. The only problem is still the speaker pop when the power goes on/off to it. I soldered a 1K - 1/2 watt resistor (only thing I could find at Radio Shack) between the ground and negative terminal of the RCA on the cable that EMPEG supplied and tested it at the deck, and at the amp, and still no dice.

The other thing is the digitized noise is still there. Even with the EMPEG on without the engine on or in my house, there is a digitized noise (you know, like an amplified mouse chewing on something). It is there with the playback of MP3's and if I switch over to the radio (through the AUX). I think that there is something not filtering within my EMPEG or something. Because nobody seems to complain about this noise. My roomate has an empeg, and he has question the sound too. Has anyone come accross this problem?