i just wonder if anyone else have or had use this kit , i just install it on my 2007 accord , and the results are not 100% there , this kit produce a very annoying noise , does anyone know how to get rid of the the noise , thanks

everything is new on my sound system except the deck ( oem radio )
4 gauge power wire runs on the left side of my car ,4 CHANNEL RCA CABLES HIGH END 3X SHIELDED runs on the center of the car , door speakers wires runs on the right side of the car , ,Kinetik HC2000 2250 Amps second battery ,2 farad capacitor ,Hifonics HFi100.4 HFi Series A/B Stereo Amplifier,Hifonics Zeus ZXI6.5C 6.5-Inch 2-Way Component Speaker System,Hifonics HFi1500 Hfi Series D-Class Mono Amplifier ,Hifonics HFI12D4 12 in. 4 Ohm 600 Watt DVC Car Subwoofer x 2 in a seal box

 

what type of noise? does it change pitch with engine RPM? if so, it's called a ground loop problem and it's the result of your grounding methods and/or amplifier selection.

somewhere you have a grounding problem. not an issue with the interface (other than ensuring you have proper ground conductivity between the interface and the amplifiers). make sure the interface is well grounded to chassis.

pics of your install?

 

thanks for your help , i manage to fix the issue , not a ground problem , the noise was cause by the PAC adapter , i read a few reviews about this product and one other person had the same problem , how to fix it , the adapter have 4 adjustable potenciometers build in just lower them to the lowest point and the noise is berly noticible .

 

you didn't fix the noise, you just lowered the gain and made the noise quieter.

i would still look to a ground loop for the alt whine.

 

i don't have a alt wine noise .is a buzzing type noise , it doesn't change with the rpm . Install aftermarket head unit noise is gone

 

Did you try running a ground from one end of the RCAs to the other. knuconceptz wire comes with a wire built in to the rcas for this.

also have you tried grounding the rca outs?
here is some things to try.
Engine Whine and Group Loop Fixes - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum
fairly certain it is a ground problem. most noises in speakers that shouldnt be there are from some grounding issue.