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re: Positive Ground Car Stereo

To: triumphs@autox.team.net
Subject: re: Positive Ground Car Stereo
From: CarlSereda@aol.com
Date: Mon, 6 Oct 2003 00:02:35 EDT
Kurtis,
You could totally isolate the neg radio from pos ground and switch the wires 
so you can use a modern radio in a pos ground car - but the first defect in 
insulation or even by a twitching heater cable contacting your radio box - your 
radio can fry. That's my experience.
You might try the Voltage Converter option (adds -24 volts to +12 making for 
-12). These units might be rare these days and some sqeal unpleasantly 
(installing it in trunk helps).
I had my squealy $18 converter located in the trunk and a flip switch at OD 
switch postition - it worked fine 'till car got taken apart.
ps; in the 70's you could buy cheap enough radios with pos/neg switch right 
on the back of the radio!
Carl
'63 TR4 since '74
-----------
I'm quite the dunce when it comes to anything electrical, so this may be a
stupid question.  Are there any options for hooking up a modern car stereo
in my (currently) positive ground TR4 other than changing it to a negative
ground configuration?  I don't suppose there are any car stereo
manufacturers making systems specifically for cars with a positive ground
electrical system are there?
Thanks,
Kurtis J.
Russellville, Arkansas
1963 TR4
CT19389L
www.geocities.com/tr4_1963




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