trx330exracer

i Just bought a 1992 240sx coupe and ive just installed my JBL and my 12' type R, i had the same set up in my integra and it worked fine. I also just bought a new pioneer deck like the one i had in my integra and i hooked it all up and when id would turn the music all the way down the sub would still hit not really to a beat it was just making a shit ton of noise... anyone every had this happen or know how i could fix it?

wierdguy75

Make sure you have good grounds on your amp, and your stereo, also make sure your not using crappy rca's

trx330exracer

i got the RCAs from walmart lol and the ground really isnt that good either would a bad ground make it do that?

wierdguy75

a bad ground will give you engine whining and other static noise, also make sure you dont run your power wires with your rca's. run them on seperate sides.

SlammedScort

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trx330exracer

whrere is a good place to ground the amp in a 92 S13 coupe? i read on another forums that people use one of the strut bolts so i did and its still making the noise it usually only does it when the car is on

Fabrik8

Ideally the ground cable should be as short as possible, and you should clean the paint from wherever the ground touches the chassis. You don't want the bolt to be the only thing conducting current. Drill and tap a hole into one of the chassis rails in the trunk. You can usually see where they are by knocking on the trunk floor or looking where there are lines of spot welds.

You should also try to keep the power cable and RCAs as far apart as possible. Noise can also be caused by poor head unit grounding, so don't spend all your time fighting with the amp unless you know that your head unit has a good ground also. If they're cheap RCAs, they're probably not shielded very well and you might want to make a small step up in quality.