heraldhabitat Posted April 26, 2008 Share Posted April 26, 2008 Hi now does anyone know if my 2000 will fry my satnav if I plug it in while it's dtill positive earth? I don't want to change it at the moment as the original radio still functions Link to comment Share on other sites More sharing options...
CharlieB Posted April 26, 2008 Share Posted April 26, 2008 Don't see why it should provided you get the polarity right ie connect the positive connection of the sat nav to the cars earth & vice versa. Link to comment Share on other sites More sharing options...
Clive Posted April 26, 2008 Share Posted April 26, 2008 Good idea, but may be worth getting a wired adapter, so that you do not mess with the sat nav lead. Just picked a 4 way one up for a quid from the local poundshop.Clive Link to comment Share on other sites More sharing options...
sparky_spit Posted April 26, 2008 Share Posted April 26, 2008 Also, although highly unlikely, if the satnav has any exposed metal parts they will be at +12V and at risk of shorting to any exposed metalwork in the car. Link to comment Share on other sites More sharing options...
Clive Posted April 26, 2008 Share Posted April 26, 2008 metal! I suspect they are all made of recycled plastic bags or something, probably biodegradable too. Link to comment Share on other sites More sharing options...
Steve P Posted April 27, 2008 Share Posted April 27, 2008 Also remember modern cars have stabilised voltages for the cig lighters etc.,sat nav`s might not like the voltage going from below 11 up to 14 or 15 volts as some of our cars might.Steve Link to comment Share on other sites More sharing options...
Deleted User Posted April 28, 2008 Share Posted April 28, 2008 My phone certainly doesnt enjoy the unstabilised voltage from the cig lighter i fitted to my car for charging things but my ipod doesnt mind it so i'd just give it a go if i was you and see what happens! just reverse the way you wire in the cig lighter? Link to comment Share on other sites More sharing options...
rotoflex Posted April 29, 2008 Share Posted April 29, 2008 Hmmm....why not just install another voltage stabiliser in front of the cigarette lighter? The OEM-type mechanical one might do better, as I dunno if the mystery solid-state aftermarket ones would handle the load of whatever might be plugged in there (like a resistance-heater cigarette lighter). Link to comment Share on other sites More sharing options...
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