Here's one for y'all too figure out

[Z3PR]

Car is a 2000 Oldsmobile Alero GLS. Stock sound system. Bad ignition noise on AM when first started, or near power lines. Noise go's away after car warms up. Will have my JVC head unit installed in near future.

 

[flatline]

check your ground from the antenna ( power antenna ) and check the grounds on the radio harness, also look for freyed wiring on the harness for the radio

 

[spearchucker]

Car is a 2000 Oldsmobile Alero GLS.

That's your problem right there.
Who listens to AM anyways? Didn't that go out with 8 track?

 

[Z3PR]

That's your problem right there.
Who listens to AM anyways? Didn't that go out with 8 track?

My mother, that's who listons to AM. Everytime we go anywhere she has too hear her talk radio. Besides, I'm in SD where all the radio stations suck, both AM and FM.

 

[Z3PR]

check your ground from the antenna ( power antenna ) and check the grounds on the radio harness, also look for freyed wiring on the harness for the radio

Antenna in the glass. I'm just going too put my JVC KD-LX50 in it. The stock radio sucks goat scroat.

 

[Greg72]

If the engine noise is present on any source.....CD, AM or FM then there's probably a deck grounding issue.

It sounds like a bad antenna ground if it's only on AM....or maybe a loose or corroded connection where it plugs into the deck???

Is this a factory setup, or is there more equipment installed? Bad amps grounds can cause this too....but again, you'd hear it on any source not just AM.


.

 

[Z3PR]

If the engine noise is present on any source.....CD, AM or FM then there's probably a deck grounding issue.

It sounds like a bad antenna ground if it's only on AM....or maybe a loose or corroded connection where it plugs into the deck???

Is this a factory setup, or is there more equipment installed? Bad amps grounds can cause this too....but again, you'd hear it on any source not just AM.


.

It's 100% factory at the momment. Only hearing the engine noise on AM, and only for a 5 to 10 mins after start up or when near power lines. Noise usely go's away after 5 to 10 mins of driving.

I belive the antenna is in the glass of the rear window.

 

[spearchucker]

I belive the antenna is in the glass of the rear window.

You sure that's not the defrost wires that you see in the rear window? Strange place to put an antenna if it is.

 

[Z3PR]

You sure that's not the defrost wires that you see in the rear window? Strange place to put an antenna if it is.

It's got those also, but there are 2 wires running strait up as well.