pk222 Posted June 26, 2013 Report Share Posted June 26, 2013 So this has been driving me insane! I've got a pioneer avh4300 with a Rockford 300/4 on my stock speakers and an audioque 1200 on 2 12in type rs. when I connect 2 sets of rcas to the amp to have.the front nd rear channels hooked up I get really bad engine noise. It even whines when the car is off. I've swapped grounds numerous RCA's. When I have only the front RCA and front channels running the speakers it's fine. Even swapping to the rear out on my deck it's fine. Only when their both hooked up it has problems. It sounds great the way it is but I just want to hook it up normal so I actually have fade. What can I do? Link to comment Share on other sites More sharing options...
pk222 Posted June 27, 2013 Author Report Share Posted June 27, 2013 If I use a splitter to run both channels it's fine. So i'm guessing it's not the amp. Link to comment Share on other sites More sharing options...
Lifted2000Ford4x4 Posted June 30, 2013 Report Share Posted June 30, 2013 it has to be something with your signal, make sure you are running your power wire on the opposite side of the car, that the RCA's are on, if you're not using shielded RCA's it can cause noise. Link to comment Share on other sites More sharing options...
pk222 Posted July 1, 2013 Author Report Share Posted July 1, 2013 The RCA's are ran on the opposite side and I've tried at least 4 different sets(8 in all) of RCA's to make sure they weren't bad Link to comment Share on other sites More sharing options...
Lifted2000Ford4x4 Posted August 22, 2013 Report Share Posted August 22, 2013 if you still have this problem, its most liekly the deck, pioneer uses a fuse called a pico fuse to protect the RCA circuit, if you hot swap RCA's you blow this fuse. you loose all grounding in the RCA from interference. taking a wire and wrapping it around the RCA outer shield then grounding that wire to the pioneers case will fix the problem. Link to comment Share on other sites More sharing options...
bassrace Posted August 22, 2013 Report Share Posted August 22, 2013 Like Lifted said pico fuse. Ground your rca's on your hu like he said. There's a pic of how it should look in this thread it's the best I could do on mobile. http://www.ecoustics.com/electronics/forum/car-audio/606514.html 145.9@40hz 145.3@34hz big 3 X2 group 34 Deka Group 31 All 0/1 awg jl meta wire Alpine CDA 7894 Orion HCCA D5000 2 AQ HDC312's Crunch gpv1100.2 (for 6.5"s only) AQ pro audio 6.5" - 3 sets AQ supertweeters - 2 sets 2000 Slamry Link to comment Share on other sites More sharing options...
dfoland93 Posted August 22, 2013 Report Share Posted August 22, 2013 re do your grounds The spot with least resistance LOL. I would ground to a rubber dildo if it had less resistance than a run of 4/0 wiring. how many poeple work there 3 or 4 lol At crescendo HQ? probably 2-3 At the sweatshop in china? 30,000 children No Engine Link to comment Share on other sites More sharing options...
bassman619 Posted August 26, 2013 Report Share Posted August 26, 2013 1st id try upgrading your alternator power wire.. upgrading the ground on the engine block and adding a second ground to the battery..all with at least 4 guage wire. Also try grounding your headunit to the fire wall instead of to the black wire on the harness..last if it still keeps on giving you noise your may need to try higher quality rca wire..get one wire with 4 channels.. like jl audio. Memphis. Or rockford fosgate.. one sime trick you may try is to slip a small piece of extra speaker wire under the outer ring of the rca at the head unit ..make sure that wire only touches the outer ring and not the inner lead and then attach the other end of that wire straight to the backside of the deck. You need trunk space to get groceries and shit...bitches love groceries Link to comment Share on other sites More sharing options...
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