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2019 tacoma TRD off-road : custom aux fuse box and bracket


I will update the post as I get further along.

So, putting together a custom setup for accessories

1. Blue Sea ST blade 12 (maybe too much) - https://www.amazon.com/gp/aw/d/B001P6FTHC?ref=ppx_pt2_mob_b_prod_image

2. Busman circuit breaker - https://www.amazon.com/gp/aw/d/B0024JHQ02?ref=ppx_pt2_mob_b_prod_image

3. 14 gauge wire - https://www.amazon.com/gp/aw/d/B07C3MZPLS/ref=ya_aw_od_pi?ie=UTF8&psc=1&th=1

4. 12p terminal block (2)

5. 40amp relays with pigtails - comes in groups of 5 - saw these on a YouTube video

6. 4 gauge wire - positive and negative - https://www.amazon.com/progress-tracker/package/ref=ppx_yo_mob_b_track_package_o4?_encoding=UTF8&itemId=kklhsvqlkjsuun&orderId=111-4250585-0860238&shipmentId=DfPby8VX2&vt=YOUR_ORDERS

7. Connectors - 4 gauge - https://www.amazon.com/gp/aw/d/B00559AJNO?ref=ppx_pt2_mob_b_prod_image

The Plate :
1. ABS plastic (heat and bend)

Created a template out of cardboard .



el taco loco

New Member
Hi Wes. I am in need of a similar mod. So many things now terminated directly to the battery. I am now beginning a Ham radio install and an air compressor goes in soon. Time to free up some space on the battery terminals and add a fuse block. You decided against the Blue Sea?

Morris Yarnell

Well-Known Member
I went with the 12 connector block (Blue Sea) as it is better to have a few too many than not enough. Was not sure how many items I was going to attach and since each one is fused at the block it really did not matter. Not going to have everything going/on at once anyway. I installed the block in the engine bay close to the battery but in hindsight it would have been better to locate it nearer to the rear as the hole in the firewall only has limited capacity to allow wires through since I put a grommet there to keep wires from rubbing on metal.
Creating a template is a very good idea, saves time and material.
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El taco, no I went with the blue sea. Just got it in and it is sweeeet.

I’ll be more than happy to share what I have learned. I hope to install all of this soon and your welcome to join me.


Final prices are done .. however, what are people opinion about further water proofing or if it needs to be done