Hi,
Noise, a neverending story...
I just installed my empeg along with a Helix HXA-40X for front and rear systems, a Helix HXA-20X for subwoofer and a SONY XEC-505 activ-crossover in a BMW 318ti.
I've done nearly everything described in the FAQ and the BBS-threads dealing with this problem to avoid any noise from the beginning, e.g. I didn't place the audio cables next to the power wires, good mass connections and so on.
The result is quite good, but a silent alternator noise remains. Unplugging the RCA jacks from the Amp results in perfect silence, so the noise comes along with the audio cables. I've tried to use a high quality noise de-coupler (galvanic). The result was, that I could hear almost everything - turning the lights on/off, the airing, a very loud alternator noise...
QUESTION: How is this possible?
Thanks in advance

Thorsten