Where to find a earth!

BigAde · Nov 1, 2010

Ok this might sound like an easy question but I am having problems. I have just installed a 400w amp into my facelift Disco and I am having trouble finding a descent earth in the boot area! I have currently connected it to the rear seat belt bolt which fastens to the wheel arch but this earth is no good.

Anyone got any idea where their might be a better earth?

The Mad Hat Man · Nov 1, 2010

connect to the chassis - use 40Amp rated wire.

BigAde · Nov 1, 2010

The Mad Hat Man said:
connect to the chassis - use 40Amp rated wire.

Would that not mean drilling a hole through the body?

robint · Nov 1, 2010

arnt the rear lights earthed can you not share the earth off them

The Mad Hat Man · Nov 1, 2010

33Amps thru rear light wiring?

robint · Nov 1, 2010

The Mad Hat Man said:
33Amps thru rear light wiring?

it was only A SUGGESTION i would let the wire drag the floor

sorry didnt mean to shout fat fingers again

paul_c · Nov 1, 2010

The Mad Hat Man said:
33Amps thru rear light wiring?

No, 33 amps to the same earth point as the rear lighting. The amplifier's earth would not pass through the lighting's earth wiring, it would be directly to the body.

The Mad Hat Man · Nov 1, 2010

eggs acterly - if it was done proper, that is

.

PaulMc · Nov 1, 2010

The rear Earth Studs are behind the rear side trim -

R/H side (shown without trim fitted)

.

L/H side (shown without trim fitted)

.

sierrafery · Nov 1, 2010

BigAde said:
Ok this might sound like an easy question but I am having problems. I have just installed a 400w amp into my facelift Disco and I am having trouble finding a descent earth in the boot area! I have currently connected it to the rear seat belt bolt which fastens to the wheel arch but this earth is no good.

Anyone got any idea where their might be a better earth?

If u have(as i do) a connector(like the one for the lighter) in the boot this one's got a good earth.

PaulMc · Nov 1, 2010

sierrafery said:
If u have(as i do) a connector(like the one for the lighter) in the boot this one's got a good earth.

It goes back to the L/H Rear Earth Header, bolted to C0809, shown in my post above.

Although it's CSA is 2.5mm2, I wouldn't use the Accessory Socket's earth wire for any additional load to earth - run a new earth wire direct to the Earth Header's mounting bolt..

.

BigAde · Nov 3, 2010

Thank you everyone for your help.

I have found a perfect earth point under the back seats!!!

The Mad Hat Man · Nov 3, 2010

BigAde said:
Thank you everyone for your help.

I have found a perfect earth point under the back seats!!!

If its anything like most Discos - that will be the ground then... :bolt:

Where to find a earth!

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