Changed grounds and power wire, radio no worky :-(

[I Like Waffle]

I was messing around with some wiring today and changed out my radio ground to a part of the frame under the radio, and changed out the constant to the cig lighter constant (had bigger gauge wire and read 12v so figured it didnt matter, and my cig lighter had been removed anyway) So i hook everything back up and no power. All my wires read 12v, i changed it back to the factory ground and that made no diff in it. I jumped it directly to the battery and it powered up fine //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif I think i may have messed up the harness probing it with my multimeter, is this possible? Tommorow im going to get some wire and run dedicated ground and 12v straight to the battery, about 10 ft. What gauge wire would be appropriate for that? Im thinking about picking up a rockford 10g amp kit and using that for the radio. Thoughts?

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[Fiercetimbo17 10+ year member]

Put the power wire back to the original, a source can read 12v but when presented with a load drops out due to a blown fuse or something similar.

 

[I Like Waffle]

I changed it back to the factory wire and it works fine. Im eventually gonna do a dedicated run of 12g for the radio itself straight to the battery. Would it be better to ground it to the battery as well?

 

[quins90lac 10+ year member]

I changed it back to the factory wire and it works fine. Im eventually gonna do a dedicated run of 12g for the radio itself straight to the battery. Would it be better to ground it to the battery as well?

correct me if im wrong but don't the factory harness all ready have a 12 volt constant source that runs through a fuse . if it works then i would just leave it alone kinda like if it aint broke don't fix it .cause running a direct 12 volt source with no fuse you just asking to burn up your deck

 

[I Like Waffle]

I can fuse it thats not an issue. But doesnt the deck have a built in fuse to protect it anyhow