Member Since: 05 May 2016
Location: hertfordshire
Posts: 250
power to ceiling console??
So im going to run power to a roof console that i have brought for my discovery 3 which will power a CB radio, 4 side mounted led lights and a set of strobe lights. Does anyone have any suggestions for getting power up to the roof/above the headlining? (will fuse it before goes up into the roof) will need 20amps theoretically but i may just take 30amps up there in case i need something else in future.
I am taking wires out onto the roof via a marine deck cable grommet and 7pin trailer cable as i cable as i can run all the seperate lights on seperate wires.
Appriciate any advise from the guys on here?
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5th Feb 2021 11:59 am
JackNorris
Member Since: 06 Jul 2012
Location: Beds/Bucks Border
Posts: 1879
Down the a pillar would be my routeMY2023 Discovery 5 R-Dynamic 3.0
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5th Feb 2021 7:25 pm
Globetrotter448
Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1822
There is power at the front roof light and the centre roof light
7th Feb 2021 6:45 am
pwheeldon
Member Since: 14 Jan 2020
Location: West Yorks
Posts: 1529
I personally would pick up the power from the courtesy light and use that for the light switch power and have the actual lights fed through a relay powered in the rear boot cubby. This is more or less what I have done. Then tge feed to the lights goes out of the rear light and up to the roof rack.Discovery 4 GS 2009 Auto Stornoway Grey
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7th Feb 2021 7:50 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
You cant feed a 20amp supply from the interior light feed.
I would come directly from the battery through the grommet behind the battery and then up the A pillar making sure you follow the other wiring keeping it away from airbags.Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
7th Feb 2021 8:37 am
dgarside
Member Since: 17 Jan 2010
Location: Holmfirth
Posts: 738
Could you not use the local ceiling power to switch the individual circuit relays/ceiling mounted switch’s and then single multi core cable (as suggested) run direct to roof from fused distribution box in engine compartment?RLD CB Bracket
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7th Feb 2021 8:52 am
dgarside
Member Since: 17 Jan 2010
Location: Holmfirth
Posts: 738
You could then fuse individual circuits to correct load and be much safer.... in my opinion 😉RLD CB Bracket
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7th Feb 2021 8:55 am
pwheeldon
Member Since: 14 Jan 2020
Location: West Yorks
Posts: 1529
aja4x4 wrote:
You cant feed a 20amp supply from the interior light feed.
I would come directly from the battery through the grommet behind the battery and then up the A pillar making sure you follow the other wiring keeping it away from airbags.
I wasn't suggesting run the 20A supply from the light, I was suggesting you pick up a feed for the switch to control a relay and this would take a minimal load. I dont know what power the CB is hence I didnt suggest that was connected to the courtesy light. However, if the load for the CB was low enough you could potentially swap the courtesy light lamps (bulbs) for LEDs and it may be enough of a reduction in load on that circuit to allow for the CB, but I doubt it.Discovery 4 GS 2009 Auto Stornoway Grey
Discovery 3 s 2005 Auto Bonatti Grey Gone
Discovery 3 SE 2005 Manual Zambezi Silver Gone
Range Rover Sport HSE 2006 Black
Aston Martin DB7 VV
7th Feb 2021 10:43 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
You would only need a relay if the load exceeds 10 amps for the lights the CB will have its own on off switch.
Personally i would fit an ignition switched relay under the bonnet and take the power from the battery that way you cant leave the lights or CB on by accident and flatten the battery.Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
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