looking good bud , im still perplexed about the noise issue , that car was dead silent when i had it never had a bit of noise ever , and nice upgrade on the door mounting , looks like the mdf did not hold up as i thought it would . great job mark !Well, if memory serves - the first ground point for the MoBridge and Helix DSP was the original ground point for the stock amp. This caused quit a large amount of hiss with the engine off and a nice hiss / whine with engine on. Changing the ground settings on the Helix has no affect on the sound. If we pulled the RCA out of the Helix - the amps were silent.
Mark moved it to a point in the upper fender well when he installed the MiniDSP and the noise was cut in half - lost the hiss, and the whine was cut in half with the engine on.
He recently moved it to the same grounding lug as the negative terminal of the battery, and the whine with the engine on was cut in half again. So fairly silent with the engine off (the car electronics make quite a bit of interesting noises), and a very small high pitched noise with the engine on - very livable - and it gets louder when the lights are turned on, but once the ballasts for the HIDs warm up, the noise reduces to that of the lights not being on.
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