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positive grounded car radio?


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ellis82 
Member - Posts: 1
Member spacespace
Joined: March 22, 2006
Location: United Kingdom
Posted: March 22, 2006 at 10:40 AM / IP Logged  
Hello..
I bought a 94 Laguna last month, but it has no car radio in it. The battery is positive (+) grounded. Does this mean i have to buy a positive grounded radio or can i insert any radio? Or do i need a transformer or converter or something to stop the radio blowing up if i put a normal radio inside, because i have got a couple of radios but they all have a negative (-) sign next to the grounding on the information panel?
Any help much appreciated..
kgerry 
Platinum - Posts: 3,455
Platinum spaceThis member consistently provides reliable informationspace
Joined: February 07, 2004
Location: Saskatchewan, Canada
Posted: March 22, 2006 at 12:49 PM / IP Logged  
you should be able to get a polarity inverter to do what you want... i used a few back in the early eighties on postive ground buses.....   another way would simply be to totally isolate the radio from the chassis, mount it in a wooden box or panel and do not hook up the antenna and it should work fine as well if you simply invert the power wiring....
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
stevdart 
Platinum - Posts: 5,816
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: March 22, 2006 at 6:34 PM / IP Logged  
...and I suppose that car drives on the left side of the road, too!
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
xscash 
Copper - Posts: 317
Copper spacespace
Joined: March 05, 2006
Location: United States
Posted: March 22, 2006 at 8:17 PM / IP Logged  

you could also isolate the radio from the chassis and connect it....but remember the ant will have to be a glass mt or it will back feed the positv into the radio ground.

   XS

kirktcashalini 
Silver - Posts: 492
Silver spacespace
Joined: November 13, 2005
Location: United States
Posted: March 22, 2006 at 8:20 PM / IP Logged  
friend of mine has a sprite with the pos ground system.. he reversed the coil, and a couple other things, BAMMM no more problems with aftermarket fuel pumps/alternators(generators) whatever. wierd euros... haha GL
99 Blazer LT.   Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)

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