hey guys im new here, i just bought a 95 monte carlo z34 from a buddy of mine, he was running 2 1500 or so watt amps, and 2 12inch subs (cant remember the specs) but he got his system stolen but they left all the wires so i bought the car from him for 600 and i put my sytem in it 1000 watt california amp off of crutchfield, and a 10 inch sony zplod 1100 watt sub in an mtx sealed box, it was all good until it got the dreaded whining noise, i checked the amp grounds everything seemed to be in place, then i fried my alternator, got my new alternator in 4 hours later, same noise, where should i go from there???
well beside the obvious problem of buying sonys you prob have a bad ground or youve run your rcas too close to a major power wire and its picking up signal
first of all, check that all of your ground wires are solid (not frayed), tight, and are amply sized, so that they can carry the load that the extra equipment is demanding. Battery negative to chassis of the car. Alternator positive to pos on battery, and all of the wires from the alternator. (most people forget this one) Engine to chassis ground. and if all is well there, try running a ground wire straight from the amp and HU to the battery negative. if no luck there, then try a ground loop isolator. I have never had much luck with these, but others on this site have. Sometimes it is nearly impossible to isolate the interference and wipe it out, but it can be done, so don't give up. Try these steps and see what you come up with.
Is the noise coming through just the subs? Or coming from your highs too? I personally do not recommend the grounding of amps to the battery as HW says, but his advice as far as running the ground wire from the radio to the amp is something that should be done, in ALL systems
hey guys i took my rcas completely out to check em over, well they were shot, you can see the kinks and frays inside the insulator, and i have a couple spares so i tried a dif rca and ran it just away from it i didnt hide it yet but that completely solved my problem, thanks guys, i will work on hiding my wires back again and puttin my interior back together. by the way the zplod works freakin awesome lmfao
glad to hear that it was an easy and cost effective fix.. oh, and viking.. sorry I guess that I wasn't specific enough, I meant running a ground to the amp and HU from the battery, temporarily to diagnose whether or not the noise would persist, pointing to problems with the other wires that are part of this circuit. I would in no way, ever recommend using a ground wire that long for an amp, ever.. (in a permanent application)- just way too much voltage drop in that situation. but it is permissable to do so for the HU, as long as it is amply sized, and properly fused. thanks for catching that one, and kicking my butt for it!
