Static from factory HU over volume 17 (out of 40)

[Boomin_tahoe 5,000+ posts]

Did you use cheap RCA cables by chance?

 

[rostam]

I used RCA cables from a company here in NJ, Rockville. 100% copper twisted pair. The cable looked to be of high quality. I used their 4 gauge OFC copper for power and ground, and their 14 gauge OFC speaker wire for my sub.

 

[ashren315]

I did two things.
First I disconnected my amp completely and only ran the rears off the factory head unit. Fading completely to the rear, no problems. When fading to the middle, i get static/crackling when increasing the volume past 17ish. I suspected a short in the front output somewhere between the HU and the end of the RCA cables I had spliced into the Front Factory speaker outputs. I pulled the HU and the splice looked good, so that means that the shielded RCA cables cannot handle the high voltage from the speaker level outputs. So I got rid of the RCA cable and extended the front outputs with 16 awg wire to the trunk.

Second, I got an LOC and input the speaker wire into the LOC and output into the amp and voila. My system is killer. Thanks for your help.

I figured it had to be something in that wiring. Either the connections or the wire itself. That's odd that the cables wouldn't handle the high level output.