can adding a pre amp remove engine noise

loudestcaraudio · Postby **loudestcaraudio** » February 1st, 2012, 7:42 pm

so i installed my new head unit a sony cdx gt650ui along with my fiatal pro 8fe and the first thing caught my attention when the car was started was this annoying noise and was wondering if a pre amp will help or just make it worst and also does anyone own the faital pro please help me

wats the best frequency to tune them at

streaminhonda · Postby **streaminhonda** » February 1st, 2012, 7:54 pm

i had that same problem with my pioneer deck and it turned out to be the rca outputs on the deck. Try grounding your rcas and see if the noise stops, i simply took two 6" pieces of wire and soldered them to the to each of the rca jacks that come from the back of the deck one for each rca jack and then grounded the other end to the deck chassis... in the case of your deck where you have front rear and sub outputs you probably will have to check them one by one, not too sure as i only have one set of pre out on my deck...

silent_riot · Postby **silent_riot** » February 1st, 2012, 8:00 pm

Work on the getting a good ground for the head unit first.
It may be that there is a grounding loop.

loudestcaraudio · Postby **loudestcaraudio** » February 1st, 2012, 8:15 pm

how exactly do you ground off the rca cause i tried that once and the speaker got like a static signal and also im pretty sure the ground ond the deck is good since i ran 2 ground wires

streaminhonda · Postby **streaminhonda** » February 1st, 2012, 8:23 pm

http://forum.realmofexcursion.com/head- ... -pics.html
Check this out, this is exactly what i did and the noise went away...

loudestcaraudio · Postby **loudestcaraudio** » February 1st, 2012, 8:37 pm

thanks alot dude

BrotherHood · Postby **BrotherHood** » February 2nd, 2012, 11:46 am

Isn't the negative alone of the RCA thats supposed to be grounded in this case? Correct me if I am wrong.

streaminhonda wrote: i simply took two 6" pieces of wire and soldered them to the to each of the rca jacks that come from the back of the deck one for each rca jack and then grounded the other end to the deck chassis

streaminhonda · Postby **streaminhonda** » February 3rd, 2012, 8:19 am

BrotherHood wrote:Isn't the negative alone of the RCA thats supposed to be grounded in this case? Correct me if I am wrong.
streaminhonda wrote: i simply took two 6" pieces of wire and soldered them to the to each of the rca jacks that come from the back of the deck one for each rca jack and then grounded the other end to the deck chassis

I realized that my explanation wasn't too clear that's y i posted a link on how to do it...