etaks_crew Posted September 18, 2008 Report Share Posted September 18, 2008 So I got some 6x9's for the front, and a set 6 1/2 for my back door with a set of tweeters. I have it all hooked up to an alpine 400.4. When I hook up my amps I get a sqeaking shiwrling noise from the door speaker and the tweeters. Once I unhook the amps for the subs the noise stops. The amps are run off a 1/0 gauge power wire that splits into two 4 gauge wires and have the same ground. The alpine amp for the door speakers has its own 8 gauge wire and its own ground. Does anyone know what my problem is? Do I need new RCA's for the woofer amps? Any input is much apperciated. Quote Link to comment Share on other sites More sharing options...
kylecm85 Posted September 18, 2008 Report Share Posted September 18, 2008 does it sound like engine noise or just a constant squealing out of them. I would check the grounds first Quote 94 lincoln mark viii h/u: kenwood kvt 614 Excelon comps: alpine type x amps: mtx 1501d mtx 4004 sub:2 DC lv4 12 wiring jl audio 0awg 8 awg sub jl audio 4 awg for mid and highs amp myspace.com/kylecm85 carstereolexington.com Link to comment Share on other sites More sharing options...
etaks_crew Posted September 18, 2008 Author Report Share Posted September 18, 2008 It dosnt go with the reving of the engine. Its just a constant noise I'll double check the grounds. Quote Link to comment Share on other sites More sharing options...
kylecm85 Posted September 18, 2008 Report Share Posted September 18, 2008 you said wjen u unhook the sub amp it goes away in your door speakers. Thats what makes me think it might be a groundloop problem. Try putting both the grounds for all the amps to the same spot in the vehicle Quote 94 lincoln mark viii h/u: kenwood kvt 614 Excelon comps: alpine type x amps: mtx 1501d mtx 4004 sub:2 DC lv4 12 wiring jl audio 0awg 8 awg sub jl audio 4 awg for mid and highs amp myspace.com/kylecm85 carstereolexington.com Link to comment Share on other sites More sharing options...
etaks_crew Posted September 18, 2008 Author Report Share Posted September 18, 2008 I'll try I dont know how much 8 guage I have first time using power wire so small. if not I could do a run a 4 guage just to see if it works. Give me a couple mins. once I dont this if it goes away it would be kinda bad cuz I would have a long ground since there on separte side the jeep but I guess I could just find one spot in the middle to ground them to. Quote Link to comment Share on other sites More sharing options...
tacomabanga1986 Posted September 18, 2008 Report Share Posted September 18, 2008 i got 4guage for my mids n highs amp, nothin wrong with over kill man, and helps get current to em and might fix it, my ground noise went away when i switched to my 860 Quote here's a link to my system 99 toyota tacoma , 2 mtx 8000 1504's in a sealed downfire , 1000w memphis amp here's a link to my other system my 90 geo prizm test car heres a thread i got of new songs u can dl that are legal = Some Good Bangage/you Can Dl These Free And Legit Link to comment Share on other sites More sharing options...
kylecm85 Posted September 18, 2008 Report Share Posted September 18, 2008 yeah u will b fine doing 4 awg just let me know how it goes Quote 94 lincoln mark viii h/u: kenwood kvt 614 Excelon comps: alpine type x amps: mtx 1501d mtx 4004 sub:2 DC lv4 12 wiring jl audio 0awg 8 awg sub jl audio 4 awg for mid and highs amp myspace.com/kylecm85 carstereolexington.com Link to comment Share on other sites More sharing options...
etaks_crew Posted September 18, 2008 Author Report Share Posted September 18, 2008 So I did the common ground thing and I still have the noise. But I nocticed if I unplug the subwoofers RCA's the sound goes away but if I hook up a different set to them the sound come back and it doent matter if I touch the RCA's the the input or the output RCA terminals the noise comes back. Quote Link to comment Share on other sites More sharing options...
kylecm85 Posted September 18, 2008 Report Share Posted September 18, 2008 sounds like maybe something going on in the amp if u already tried switching rcas and it still does it. Do u have ur rcas going in to one amp out of the same amp and into another soret of like daisy chaining them. Are ur rcas and power ran on diffrent sides of the vehicle. Quote 94 lincoln mark viii h/u: kenwood kvt 614 Excelon comps: alpine type x amps: mtx 1501d mtx 4004 sub:2 DC lv4 12 wiring jl audio 0awg 8 awg sub jl audio 4 awg for mid and highs amp myspace.com/kylecm85 carstereolexington.com Link to comment Share on other sites More sharing options...
etaks_crew Posted September 18, 2008 Author Report Share Posted September 18, 2008 well the two amps for the subs are what you called daisly chained I believe is what you said. but the Alpine amp has two sets of rca's both from the deck back the amp. Let me go switch out my amps for my subs with my back ups and let me see if it stops. Quote Link to comment Share on other sites More sharing options...
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