Re: Alternator whine on RADIO

["Lino M. Valadas" <valadasl@osha.igs.net>]

> 
> .>But I have exactly the same problem, after installing
> >an after market amp for the rear speakers (Blaupunkt BSA 60). The
existing
> >radio is a Blaupunkt Lexington SQR 48. 
> Lino, 
> What are you doing exactly? I have 2 big Yamaha AMPs in the back and no
> whine!
> Avi
>  

Avi,

This is what I have:

The amp. is in the front, tucked in the dash atop the glove box.  
The amp and the radio share a common ground.
The amp and the radio get power directly from the battery (10 gauge wire, I
believe).
Only the rear speakers are connected to the amp.  Using existing harness. 
The front ones connect to the radio as before.
Here's where I think things might be happening.  I'm using a Radio Shack 5
pin DIN cable to go from the radio preamp out to the amp.  I tried a hand
made one with same results.  Blaupunkt sells this cable but at CDN$70 I've
been shying away from it.

If I remove the amp from the equation, no whine.

I tried a noise filter, no difference.

So I've been living with it, hoping the radio dies so that I can justify
getting a new one.

If you have any suggestions, I'll give it a shot.

TIA

Lino

86 5ktqw