Cargo Area Grounding Point?

[R6Joker]

Does anyone have a good recommendation for a solid ground in the cargo area of a FJ80 for an Amp/sub? I keep blowing the fuse when using the tie down points or the bracket the seats use. It doesn’t seem to provide solid continuity and I’d prefer not to sand down to bare metal. TIA!

 

[robnicko]

you are better off running a proper dual +ve & -ve cable for that purpose to the rear, 8 B&S. Then you can use for other applications as well

 

[R6Joker]

Like run it to a bus bar in the back and connect to that ?

 

[robnicko]

either that or an Anderson plug that you then tap into
be sure to fuse appropriately at the battery

 

[manofthewoods]

Does anyone have a good recommendation for a solid ground in the cargo area of a FJ80 for an Amp/sub? I keep blowing the fuse when using the tie down points or the bracket the seats use. It doesn’t seem to provide solid continuity and I’d prefer not to sand down to bare metal. TIA!

You might still be able to use the bolt for the rear seat mount if you take the bolt put it in a vice and use a drill with a wire brush to clean the bolt extensively. Do the same with the bolt near the battery that grounds the frame. Otherwise, direct heavy wire(s) are a sure thing.
Good luck with the project

 

[truthdetector]

I grounded between the QPM and body and have no issues. I lightly sanded and clamped the eyelet between. What is the condition of your grounds between the T-case to underbody and firewall to head?

 

[fjbj40]

Does anyone have a good recommendation for a solid ground in the cargo area of a FJ80 for an Amp/sub? I keep blowing the fuse when using the tie down points or the bracket the seats use. It doesn’t seem to provide solid continuity and I’d prefer not to sand down to bare metal. TIA!

Sand down to bare metal is the correct way of creating an effective ground. Before attaching use a corrosion inhibiting compound and you will have no problems.
Any ground requires this process!

 

[manofthewoods]

Sand down to bare metal is the correct way of creating an effective ground. Before attaching use a corrosion inhibiting compound and you will have no problems.
Any ground requires this process!

Yeah,
Good grounding isn't really appreciated. But, can make a difference in many ways

 

[fjbj40]

Yeah,
Good grounding isn't really appreciated. But, can make a difference in many ways

Bad grounds can create so many headaches!

 

[R6Joker]

Thanks everyone for the suggestions. I am pretty sure the powered sub I have is f’ed. I tried all different ways even direct heavy gauge straight to the back and it keeps blowing the fuse.

 

[Marvelicious]

Thanks everyone for the suggestions. I am pretty sure the powered sub I have is f’ed. I tried all different ways even direct heavy gauge straight to the back and it keeps blowing the fuse.

I think you're most likely correct, though I'd bench test it before I made the call. Still, are you saying you're blowing the fuse on the amp itself, because I can't see a bad ground causing that. A bad ground would LIMIT the current getting to the amp, assuming it's the correct value, the blown fuse is telling you there's TOO MUCH current moving through the power supply of the amp because of a problem happening inside it.