Electrical impacting Car Stereo

[33fromSD]

I'm running just a SBF (302), carbonated / electronic ignition

Jim

[narly1]

I'm running just a SBF (302), carbonated / electronic ignition

Jim

Then I'd be looking at the alternator, followed by plugs & wires...

[33fromSD]

Then I'd be looking at the alternator, followed by plugs & wires...

I'll disconnect the alternator first as a sanity test.

Just to be clear on the noise, it's not a whine, or a hiss, or a buzz, it is a very loud crackling, popping intermittent but continually type sound. Also the noise is not affected by engine speed.

Jim

[KGTM]

Generally you do not want your antenna grounded to chassis since the coax has its own ground wire back to radio.

Now as why noise, most of the time these grounds are isolated as how is connected on the PCB, and connecting them far from each other will inject the noise difference between the two to internal ground.

At least solved.

Mostafa

[33fromSD]

Generally you do not want your antenna grounded to chassis since the coax has its own ground wire back to radio.

Now as why noise, most of the time these grounds are isolated as how is connected on the PCB, and connecting them far from each other will inject the noise difference between the two to internal ground.

At least solved.

Mostafa

Hey Mostafa

Agree on everything, which is why I was baffled by the resolution, it broke all the rules I knew for car audio.

But, like you noted it's resolved so I'm good.

Jim