Alternator wine with new radio
#1
Alternator wine with new radio
Sup guys, wanted to share a stupid problem I'm having with my new in dash dvd radio I just purchased.
Basically when the radio is powered up I can hear a wining noise coming from all my speakers thats RPM dependent. At redline it's pretty much screeching. Anyways I installed the stock radio back in and it goes away, no problems.
I heard the phrase "alternator wine" that describes my problem but don't know were to start, I have about zero experience with car audio haha.
The radio was used and came out of another SC3 so it was plug and play when I got my hands on it, the whole sound system on my car is factory by the way. Can anyone shed some light???
Basically when the radio is powered up I can hear a wining noise coming from all my speakers thats RPM dependent. At redline it's pretty much screeching. Anyways I installed the stock radio back in and it goes away, no problems.
I heard the phrase "alternator wine" that describes my problem but don't know were to start, I have about zero experience with car audio haha.
The radio was used and came out of another SC3 so it was plug and play when I got my hands on it, the whole sound system on my car is factory by the way. Can anyone shed some light???
#2
Maintenance Moderator
iTrader: (2)
almost always attributable to a weak ground... I had to run a second chassis ground in my car to get rid of the same type of alternator whine... basically, what you need to do is clip the ground from the back of the unit and run a heavier gauge wire to something that has chassis ground to it behind the dash - if I recall, there are a few pretty significantly sized bolts that bolt into the cross bar behind the dash - one of those would be perfect...
#7
You can also try using some ground loop isolators. I had the same problem before and grounded everything including the RCA plugs for the speakers but there still was a little of the alternator whine left. Eventually I tried the isolators and it got rid of what was left of it. You can get the ground loop isolators anywhere such as Best Buy or cheaper online.
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