Best fuse to tap in? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

budul05 · 07-04-2016, 04:03 PM

I want to hardwire a radar detector, but i need to find a fuse that would be powered only when ignition is on and would be safe to do so. Any tips ?

16 BRZ Limited

ryoma · 07-04-2016, 04:31 PM

accessory fuse. you have two cigarette adapter ports so find one that you don't use (like the one in the glovebox) and figure out which fuse it is (there are 2) and tap into that. picking any accessory fuse is probably fine since the radar detector won't draw too many amps but it doesn't hurt to be safe just in case you want to charge an ipad on the same port or something that uses a lot of power.

or you can just plug into the cigarette port into the glovebox and hide the wiring. that's what I did for my dashcam and it's easily reversible. tapping a fuse isn't that reversible unless you do an add-a-fuse. some people also tap right behind their auto dimming mirror too.

greencounty · 07-12-2016, 02:14 AM

I used one of these for a dash cam...might be worth it:

http://www.autoharnesshouse.com/76297.html

07-04-2016, 04:31 PM	#2
ryoma Senior Member Join Date: Mar 2015 Drives: 2015 Subaru BRZ Limited CWP Location: SoCal Posts: 1,561 Thanks: 34 Thanked 669 Times in 469 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	accessory fuse. you have two cigarette adapter ports so find one that you don't use (like the one in the glovebox) and figure out which fuse it is (there are 2) and tap into that. picking any accessory fuse is probably fine since the radar detector won't draw too many amps but it doesn't hurt to be safe just in case you want to charge an ipad on the same port or something that uses a lot of power. or you can just plug into the cigarette port into the glovebox and hide the wiring. that's what I did for my dashcam and it's easily reversible. tapping a fuse isn't that reversible unless you do an add-a-fuse. some people also tap right behind their auto dimming mirror too. __________________ My 2015 CWP BRZ Build

07-12-2016, 02:14 AM	#3
greencounty Member Join Date: Apr 2014 Drives: 2013 Subaru BRZ Limited Location: Pittsburgh, PA Posts: 73 Thanks: 0 Thanked 10 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I used one of these for a dash cam...might be worth it: http://www.autoharnesshouse.com/76297.html __________________ Garage: 2013 BRZ Limited 6MT - Galaxy Blue 1994 Ford Probe GT 5MT - Red(some would argue pink) 1969 Mustang Fastback 4MT - Royal Maroon

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