Lakeshow94 Posted November 9, 2015 Report Share Posted November 9, 2015 So I understand that measuring a good ground is done through resistance. If I was trying to find out if I have a good ground in the trunk of a car where would I put the side of the dmm that isn't on the ground? I've read you measure it vs a good ground (front battery negative) although I don't have any dmm leads that long........ how do people measure a good ground in the trunk of a sedan? 1999 Lexus GS 300 Pioneer DEH-80PRS Singer 240 Amp (Will be installed later) Northstar Group 31 & 24 Sundown SCV-4000 Rockford T400-4 2 12" CT Sound Meso CT Sounds 6.5 Meso Components CT Sounds Tropo 6.5 Link to comment Share on other sites More sharing options...
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