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<blockquote data-quote="IgnoreMe" data-source="post: 3483334" data-attributes="member: 551352">well a 1.5 volt drop is still pretty serious.do you have alligator clips on for your dmm probes? if so1) disconnect the battery ground to the chassis, from the negative battery terminal.2) set the dmm to read ohms, and connect the 16g wire to the battery to chassis ground and the other end of the 16g wire to 1 alligator clip on the dmm3) then use the other dmm probe to probe around on the metal parts of the car that you deem fit to be used as a ground.you want the dmm to read the same exact value as when you touch the two dmm probes together. so say if the dmm reads .2 ohms when the leads touch together, you want your grounding point to the battery to chassis ground to read no more than .2 ohms. this will basically tell you what is and what isnt a good ground. you might not need to run a dedicated ground to the front, if you can find a good one in the back. let me know if this even made sense to you.</blockquote>

[QUOTE="IgnoreMe, post: 3483334, member: 551352"] well a 1.5 volt drop is still pretty serious. do you have alligator clips on for your dmm probes? if so 1) disconnect the battery ground to the chassis, from the negative battery terminal. 2) set the dmm to read ohms, and connect the 16g wire to the battery to chassis ground and the other end of the 16g wire to 1 alligator clip on the dmm 3) then use the other dmm probe to probe around on the metal parts of the car that you deem fit to be used as a ground. you want the dmm to read the same exact value as when you touch the two dmm probes together. so say if the dmm reads .2 ohms when the leads touch together, you want your grounding point to the battery to chassis ground to read no more than .2 ohms. this will basically tell you what is and what isnt a good ground. you might not need to run a dedicated ground to the front, if you can find a good one in the back. let me know if this even made sense to you. [/QUOTE]

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