8th Generation Honda Civic Forum - View Single Post

Wally · 09-13-2007, 12:34 AM

Here is another tip too (use at your own discretion and check with a DMM)

Interior Fuse Panel
Fuse #7 - not used (open) is actually powered always with or without the ignition on (use the lower slot for power from the fuse box, but remember its always on or "hot").

Interior Fuse Panel
Fuse #8 - not used (open) is actually powered on only when the ignition is in the "II" position (engine running) (again use the lower slot for power from the fuse box, but switched by the ignition)

Found this out when looking for a free tap to hard wire my radar detector in and free up the accessory slot for a cleaner look.

I'm sure either of these have many other uses.

BTW - stock mini-ATM fuses will fit just fine, also spares (along with the fuse puller) are in the upper fuse cover in the engine compartment.

I used fuse slot #8 and a mini-ATM fuse tap from Advance Auto Parts to power my radar detector with a 2 Amp fuse - doubtful a radar detector will pull 24 Watts of power

Note: pictures in the link above are without this tap but gives you the idea.

I have not checked the other "not used" fuses (1. they are harder to get too, 2. not really had a need to check them out).

FYI - W

PS: the mounting screw to the right of the fuse box, makes a great ground point as well if you don't want to tear into that mess behind the fuse box to get to the main ground lug.

09-13-2007, 12:34 AM	#37 (permalink)
Wally Senior Member Join Date: Jan 2006 Location: Montgomery, AL Posts: 235 EX Coupe MT iTrader: 3 / 100%	Fuse slots #7 and #8 - not used, but are useful Here is another tip too (use at your own discretion and check with a DMM) Interior Fuse Panel Fuse #7 - not used (open) is actually powered always with or without the ignition on (use the lower slot for power from the fuse box, but remember its always on or "hot"). Interior Fuse Panel Fuse #8 - not used (open) is actually powered on only when the ignition is in the "II" position (engine running) (again use the lower slot for power from the fuse box, but switched by the ignition) Found this out when looking for a free tap to hard wire my radar detector in and free up the accessory slot for a cleaner look. I'm sure either of these have many other uses. BTW - stock mini-ATM fuses will fit just fine, also spares (along with the fuse puller) are in the upper fuse cover in the engine compartment. I used fuse slot #8 and a mini-ATM fuse tap from Advance Auto Parts to power my radar detector with a 2 Amp fuse - doubtful a radar detector will pull 24 Watts of power Note: pictures in the link above are without this tap but gives you the idea. I have not checked the other "not used" fuses (1. they are harder to get too, 2. not really had a need to check them out). FYI - W PS: the mounting screw to the right of the fuse box, makes a great ground point as well if you don't want to tear into that mess behind the fuse box to get to the main ground lug.