Originally Posted by FORDF250HDXLT

important! if you plan on running dual aux lights for fog lights.consult your state law first!!!

please excuse the stripped down truck.she's all ready for the body shop Monday.

made up my harness.got the relays and switches so i'll hook those up tomorrow.
i made a mistake with my harness.for the yellow lights,im going to install one of them wig wag flashers (just search that on you tube if you've never heard of 'em.)
so what i want to do is bring up two individual lines for the yellow set.i forgot all about that until just now.easy couple min correction.
this way when im working along the road i can turn them on along with my hazards.(this is my tree service/chipper truck.)
anyway.this shows how to build your basic harness.connect all grounds and bring them up to the battery - terminal,or you could just ground to a bolt down there if you prefer.with these salt roads i don't like to mess with dirty/rusty grounds if i can help it.so i brought mine right up to the battery.
next you just hook your two positives together,unless you want wig wag like me.so i'll keep the clear lights hooked together as they are,and those will go on one relay.
the other i'll separate and bring up to a wig wag relay.for now just a basic one cus iv not ordered it yet.
for the relays and switches (the part most of you will be interested in) i'll show them as i install tomorrow.

oops.hold the phone.
no wig wagging for me apparently.against the law.ah well,that's ok.a good old flasher will suffice.
hmmm,all it says is headlights cant up front though,and nothing at all for lights can alternate flash in the rear.
i'll have to make a call.sure seems like a nice safety feature to me when chipping brush road side.
double oops.can only have two fog lights on the vehicle in Maine.
nothing like checking the laws after ya do something uh? well nuts.i really liked the looks of that too.
what if a set isn't fog lights though,but extra flashers like what im doing.
looks like i need to make a call to check on a couple things hey? lol.

Originally Posted by FORDF250HDXLT

ok here we go guys.finished her up today.
reading the Maine state laws,it clearly shows you can't have more than two fog lights.with a flasher on a set,they are aux warning/hazard lights and cannot be used as fog lights( i clearly have a single pole switch,so no tricks.)
no alternating headlights,nor any alternating rear lights (of any sort back there.) but no law against wig wagging aux lights up front that i can find.
im still going to call to verify im legal first before hitting the road.i don't want the hassle of being pulled over when im out working.not worth the down time.plus i like my spotless driving record and good insurance rates.

started by fishing my harness back out to the lights,in order to run devoted wires for my yellow set of extra hazard lights so i can run a wig wag relay.installed a couple switches.one for the hazards and one for the fogs.i used the radios fused ignition on power to run though the switches to trigger my relays.this way i can't mistakenly leave any lights on when the keys are removed from the truck.one must have the key on,run or accessory for the switches to work.remember no draw from this line going to pins #85 on the relays go to power the lights.it simply tells pins #30 (a fused line from the battery) to pin #87 (the line to your lights) to make contact,thereby sending power directly from your battery to your lights.
the negative from the lights goes directly to ground,as does pin #85 on your relay(s.) pretty simple stuff here.time consuming to make up decent connections,heat shrink them,tape and wire loom.the end result is all worth it though and very rewarding.
i personally i have never had issues with simply crimping my connectors.many however feel soldering is the only way to go.i figure until something fails me,im sticking to it lol.
you'll notice i used a temporary wire nut.these are like them scotch locks (probably not as bad but close lol) .......they just don't have a place for a vibrating auto.
this is just to hook my yellow light set back together so i can join them to a single basic flasher for now.that will get ditched in place for a alternating wig wag flasher,where each line will go directly to it's own plug,thus eliminating the wire nut (and basic flasher.)
also note,when working with all red wire,do yourself and potentially next owner a big favor.i didn't show in many pics,but i made sure to mark all ground wires used,with black electric tape on the ends of the grounds back a few inches.(oops.looks like i did forget for the relay grounds.dang.ahh well.they're on pins #85 and clearly just short little wires mounted right there to the fender.so they're obvious anyway.if i ever need to replace the relays,i'll wrap 'em.)
ground your switches.i dunno why i put that ring terminal on,i latter ditched that and tied into the ground with the radio as well rather than risking an bolt/nut coming loose to hold another ground.
both switches simply get the radio power for your trigger,and of course the two loads running out to your relay.
leave yourself nice long wires so you can pull the instrument panel bezel (i guess ya call it?) right out and set it in your lap for the future.otherwise you'll have a hard time plugging stuff back in when you go to change a bad bulb! there's plenty of room to coil wires safely back there.