From: rayma@NeXTwork.Rose-Hulman.Edu (Michael A Ray)
Newsgroups: rec.audio.car
Subject: DIN adapter for portable CD player problems
Date: 3 Sep 92 23:52:32 GMT
Organization: Rose-Hulman Institute of Technology


I just recently purchased a portable player to use in my car (my old  
one was stolen a year ago) and hooked up my Jensen CD adapter type  
thing to my Soundstream TC308 again.  All this adapter does is  
replace the cig lighter power cord and "line out-to-RCA in" cable  
with one cable to make it more convenient to hook up.

My problem is this:  I get a lot of noise through my head unit (ie -  
speakers) when using the 9V input which is very annoying (and perhaps  
damaging to tweeters at high levels) when listening to softer  
passages.  This noise is directly related to the motor speed of the  
player's motor.  There is *no* noise when I run off batteries.  I've  
tried many different combinations of connecting the power and ground  
wires as well as using a cig lighter power cord (12 to 9v), thinking  
I had a bad ground, but the problem never improved.  The thing that  
bothers me is that this problem was not present when the Jensen  
adapter was in my old car (about 3 years ago) with my former player.   
Is there something I'm not thinking about?

I'm using batteries for now, but I imagine that will become expensive  
after a while.  Any help would be appreciated.  Thanks.

Michael Ray

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