Hardwire inverter

Hi guys,

I’ve been searching all of the topics can’t find the right one so thought I’d ask.
I bought an inverter cables ect for my truck to power my microwave. Fitters said they’ll get it done this Saturday, then the saturday after ect ect that was 4 weeks ago and it was bring done every Saturday supposedly. The electrician did cone in and said he was gonna hardwire it to the box behind the fuse box where the feed from the batteries come in.
Thought about doing it myself as I just keep getting robbed off. I’ve looked in the electrical box under the good passenger side, I can find the positive cable running in behind the black cover but can’t seem to find the negative.

The question is where abouts does the negative run, where should I earth too and do I literally just connect my inverter cables to the thread?
Thanks
Its a scania R340 11plate

The chassis is your earth! Bolt the negative lead somewhere accessible. I’m guessing it’s a powerful inverter if you’re planning to run a microwave? Best get a fitter to give it the once over though.

if you dont have a clue,
then this will happen to you.
if you wire it yourself,then make sure you have the gaffers permission,and have the fitter ok it before lighting her up.

lorry_fire.jpg

Slip the fitter a tenner, a little financial motivation will get the wheels in motion

What the previous two said. All about arse-covering these days. If the fireball scenario (God forbid) should happen, and you fitted it…