Hey guys, I'm a happy DIY'er but some electronics are not my strongest suit. I'm wanting to install the ebay Ap2 fog lights/drls on a switch so that I don't have to run them with only parking lights, etc. I want to be able to turn it on and off whenever.

1. Will this wiring work with an Add-a-circuit fuse tap? How tough is running the wire through the firewall?




http://www.amazon.com/Littelfuse-FHA.../dp/B0002BGELQ

http://www.amazon.com/Rocker-Toggle-...rds=12v+toggle


2. IF NOT, how should I change it?

3.What size wire should I use? 16 gauge? What size fuze do I need for the DRL line? 10Amp? Should I run of an accessory switch or a 12v constant?


in case you don't know, these are the fogs i'm looking at:
http://www.ebay.com/itm/2004-2009-Ho...21432b&vxp=mtr

 

Considering getting these as well, I have an AP1 with AP2 rear bumper so I don;t have the rear fog light. So... I'm thinking wiring the DRL to the fog light button. Should be pretty easy.

 

help???

 

In theory, yes that works.


Only thing that concerns me is the amount of current those foglights draw (ebay isn't very descriptive from a technical standpoint). If they draw too much current for that switch, it could melt the switch. A relay may be needed if that is the case.

14-16 gauge wire will be fine


And without the current they draw, a fuse value is kind of hard to determine. A guess would be a 3 amp fuse.


If you have a multimeter, hook them up and measure the current drawn by the fog lights.

 

Okay, I have a multimeter and can do that when i'm back in town.
Being LED's, i assumed that they'd pull next to no current. Also, Aren't I playing it safe and having a 3a fuse blow before it melts? or am i wrong in that theory

 

If you decide to run off an accessory wire, definitely use a relay.

 

I wasn't going to run off an accessory, I was going to use a constant that was unused already in the box.

 

If I recall correctly, those fog lights use 1w-3w high power LEDs, so current will be higher than a standard 5mm led. It also depends on the way the pcb is layed out so calculating power/volts really is guessing because we don't know how many are parallel and how many are in series.

That being said, yes your fuse should blow before your switch would melt, so long as your switch is rated for at least 3 amps. and amazon isn't a great source for technical information either (you see where this is going? ).

And again, 3amps was a realistic arbitrary number.


Your best bet is measuring the current drawn and from there you can determine if you will need a relay/ what rating switch you will need. Remember to place your multimeter inline (series) with the load to measure current