So in my car i currently have the following:
Fi SSD 18" w/ 9cuft box @ 32hz
Old 380w soundstream amp powering it (temporarily)
Alpine SPR-13S components
Hifonics HFi100.2 for the alpines
Pioneer DEH-2100IB
I have a set of 8 gauge wire running to the soundstream amp as its only 15 amps. The Hifonics has 4 gauge wire.
I recently got the hifonics for my front stage. Before i installed it there was no buzzing in my speakers. Once i installed it I had a buzzing problem. So, ok, ground issue. I redid all my grounds.
Grounds coming off battery:
First ground:
Second ground:
First amps ground:
Second amps ground & head unit ground (no metal behind head unit to ground to):
Didn't fix the buzzing problem. So I rerouted my RCAs which were on the same side as the power wiring, thinking that must be the problem. Still didn't fix it. I was told about the pico fuse problem with Pioneer decks, so i went about soldering the board today, put it back in and still had buzzing.
I'm not sure what else to do besides buy a ground loop isolator, but I heard those can degrade sound quality, or half the volume etc. I really want to fix the problem without using one, but I'm lost on this.
Anyone have any idea how I can fix this ?