RE: [DML] Car audio question..

["Kevin Abato" <delorean@xxxx>]

Are they the original speakers?

I put new speakers in my car, and ran new wiring for them.

-----Original Message-----
From: Hank Eskin [mailto:henry@xxxx] 
Sent: Thursday, September 19, 2002 8:12 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Car audio question..



Today I installed my new Alpine radio. I'll spare everyone the details,
but the install went very well, due to lots of preparation and DML
research. But I have a problem.

The radio basically works OK - all functions work - power antenna,
proper illumination, no sparks or shorts, and everything else in the car
still works fine. This radio has a built in 27 watt RMS/60 watt peak x
4 channel amp, which is powered by a direct connection to the battery
(positive and ground).

Here's the problem: The sound is good upto volume level 14 or 15 (I
know the numbers are meaningless, but it's just a point of reference).
That level is a good, normal level for listening to most things and
still carry a conversation with someone. As soon as I turn it up past
that point, I get
increasing amounts of loud static. It's not the speakers clipping, or
a
clipping sound at all, the best I can do is describe it as loud static.
I'm also pretty sure it the amount of static is proportional to the
amount of bass in the music and/or the bass setting on the radio.

Here's what I think the problem may be, but I'd like some professional
(or at least knowledgeable) opinions. The Delorean wiring harness for
the Craig radio share a common (-) lead between the front and rear
speakers for each side. (Right common and left common), plus four (+)
leads for each speaker
(6 total leads). Of course, the new radio has separate + and - leads
for
each speaker (eight total leads). I combined the each of the two (-)
leads for the left and right sides to match up to the harness (8 leads
to 6 leads). Is it likely that the combining of these two sets of two
leads from the radio is causing the amplifier to cause this static?
Should I go back in and just wire the speakers directly to the radio
leads?

Besides this one problem, the radio sounds great - no hiss or hum or
engine interference, etc.

Thanks,

-Hank #1619




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