Brian Grffin Posted February 23, 2020 Member ID: 350 Content Count: 3 Reputation: 1 Joined: 02/23/2020 Status: Offline Last Seen: March 19, 2020 Share Posted February 23, 2020 Just purchased a 2020 defender max basic unit. What are the bundle of wires under the dash and front access used for? I also see unused fuse compartments. What are these used for? Link to comment Share on other sites More sharing options...
A hunt 2 remember Posted February 23, 2020 Member ID: 274 Content Count: 639 Reputation: 112 Joined: 11/22/2019 Status: Offline Last Seen: January 12 Share Posted February 23, 2020 Not positive, but considering you stated a BASE UNIT..... I would figure they would go to upgrades such as winch, lights, heater, etc.... but I'm not sure... I know my 2019 had a few of these open pig tails.... But I bought a full cab with heat..... Link to comment Share on other sites More sharing options...
Andystoy19 Posted February 23, 2020 Member ID: 133 Content Count: 692 Reputation: 151 Joined: 04/24/2019 Status: Offline Last Seen: 18 hours ago Share Posted February 23, 2020 I would suggest that you ask your dealer to give you a copy of the wiring diagram for your Defender Max basic unit. If he says he doesn't have one ask him to copy the page(s) from the 2020 Shop manual as well take a picture of the dash of the same vehicle that has all the options. This should give you a better idea of what extra wiring you may have. It may be that you have a wiring harness that includes wiring for dash control of the winch, the wiring for the eco/work/normal modes etc. You may also ask for and order the shop manual and supplement if there is one for the machine which would be most helpful. Yes they cost money but are a great investment.😉 Link to comment Share on other sites More sharing options...
DavidY Posted March 19, 2020 Member ID: 362 Content Count: 21 Reputation: 3 Joined: 03/11/2020 Status: Offline Last Seen: June 11, 2021 Share Posted March 19, 2020 After just sorting through a bunch of that stuff to install my accessories... There are bundles of wires already run with water-tight connectors. There's a big bundle of them that go from the central dash to the floorboard for lighting, heated accessories and a smaller bundle that goes under the service hood area for a winch. It is really all very convenient and thoughtful on BRP's part but... Sorry to say that the install guides for these powered accessories left me scratching my head and coming up with new combinations of fowl language until I sorted it out for myself. Clearly, what Andystoy19 said is true (and I'm going to do it myself): Get the shop manuals! David Link to comment Share on other sites More sharing options...
Brian Grffin Posted March 19, 2020 Member ID: 350 Content Count: 3 Reputation: 1 Joined: 02/23/2020 Status: Offline Last Seen: March 19, 2020 Author Share Posted March 19, 2020 They are free wires. All color coated. Nice to have 1 Link to comment Share on other sites More sharing options...
jkpresle Posted November 10, 2020 Member ID: 736 Content Count: 1 Reputation: 0 Joined: 11/05/2020 Status: Offline Last Seen: February 9, 2021 Share Posted November 10, 2020 Brian Grffin do they come out in back somewhere? Link to comment Share on other sites More sharing options...
Nharper2021maxxmr Posted January 7, 2021 Member ID: 836 Content Count: 1 Reputation: 0 Joined: 01/07/2021 Status: Offline Last Seen: January 17, 2021 Share Posted January 7, 2021 The bundle under the dash goes under the first center floor board, to attach rear and cab accessories. Leaves the pain in the but time of running wires for lights ect. to dash area. They are color coded for easy hook up. Note: they are not powered or grounded. Link to comment Share on other sites More sharing options...
WillyB Posted January 9, 2021 Member ID: 840 Content Count: 1 Reputation: 0 Joined: 01/09/2021 Status: Offline Last Seen: January 15, 2021 Share Posted January 9, 2021 The bundle under the dash has four of the same colour combinations as the bundle under the hood. Do the others come out in the area of the battery, or is there another bundle in the engine compartment? Link to comment Share on other sites More sharing options...
Fenwaysdad Posted January 23, 2022 Member ID: 1,430 Content Count: 1 Reputation: 0 Joined: 01/23/2022 Status: Offline Last Seen: January 23, 2022 Share Posted January 23, 2022 The wires under the dash lead to under the hood and to the middle of the center tunnel. They are provided for wiring accessories and make it much easier to do so, as you don't have to deal with routing wires through the firewall or around the HVAC ducts/equipment. Link to comment Share on other sites More sharing options...
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