ShamelessTT Posted March 25, 2009 Share Posted March 25, 2009 Hi all Very quick and probably stupid question!. Im fitting a new boost gauge and it says "For cars with a negative earth only". Its a mechanical gauge with back light. Now what i was going to do was wire the power for the backlight off the cigarette lighter both positive and negative wires. (I already have boost feeds done for boost controller etc) But is the Supra negative earth? (i.e - battery terminal goes to chassi) and would wiring it like this be ok? Cheers Simon Quote Link to comment Share on other sites More sharing options...
JustGav Posted March 25, 2009 Share Posted March 25, 2009 It is indeed negative earth.. Positive earth cars are VERY rare now, and usually very old classics. Quote Link to comment Share on other sites More sharing options...
ShamelessTT Posted March 25, 2009 Author Share Posted March 25, 2009 Cheers, just wanted to confirm that Quote Link to comment Share on other sites More sharing options...
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