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Re: A/C, Radio, Arrrrrg!
mike posner wrote:
> Elliot writes re problems eith ac controls and noise in rr speaker
> when ing
> switch on /off. Does the speaker popping/noise coincide with cycling
> on/off of a/c compressor?
No, they seem independent of each other.
> and do you have the bose speakers?
No, I have the Audi Gamma system which is a Blaupunkt head unit and
Namika (? something like that, I forget) rear drivers.
> If so the problems with both the
> control and the speaker pops or clicks may be the result of a voltage
> backing up the hot wire to the air cond. clutch. If so, a Zener diode
> part # 4926) wired in line with the
> acclutch hot wire, effectively allows current to go one way only, to
> the ac
> (arrow on the diode points down. Any spiking, current backing up the
> goes to
> ground, thus eliminating the two problems.Audi has a tech bulletin
> (#92-02- group 87)
> and they sell a diode and wire harness for about $100 or $250
> installed as
> I recall.
> I found the above NTE part at a local electronic store for $2.00 and
> still works fine.
> Hope this works for you. Mike.
That definitely sounds like an idea. I'll look into it.