How to ground my Amp on Yaris Hatchback

[RUFFSTUFF]

Originally Posted by talnlnky

...for reducing noise, rca placement has very little difference... the whole car is the ground... and interference can be induced from both the positive & ground... the "ground" in a car isn't a "true" ground there is still voltage and amperage passing through it... its not like a 3 prong plug in a wall outlet which has a pos/neg/gnd. Cars are actually more like pos/neg (ground is kind of a misnomer)...

Actually you are wrong. In your home the 3-prong outlets are POSTIVE/NEUTRAL/GROUND with the larger slot being NEUTRAL. NEUTRAL and GROUND are actually both connected to ground. This is a safety feature that allows a short to the casing of whatever is being powered to trip the breaker.

In a DC system (like a car stereo) ground always has current flowing through it as long as there is a path to the positive power source. In a car most people call it GROUND when referring chassis metal in a negatively grounded electrical system.

Some people advise against routing your RCA cables next to your power cables because the high current the power cables pass may be enough to induce a voltage into the RCA cables which would appear as noise.

[talnlnky]

Originally Posted by RUFFSTUFF

Some people advise against routing your RCA cables next to your power cables because the high current the power cables pass may be enough to induce a voltage into the RCA cables which would appear as noise.

thank you for proving my point... power still flowing through the chasis... still a good amount of power (about 20-50% more power than over the power cable in fact depending on what kind of amp you run). And noise being induced into the signal via RCA's is still one of the least common reasons for noise in the system. So even if placing your cables did make any kind of a difference.... IT STILL WOULDN'T MATTER 99.9% of the time cause its all about bad electrical connections and voltage differentials.