Dammit, I'm really mad that that's not the fog plug. I have the passenger side, so where is the stupid driver's side????

 

If you have the passengers, the drivers is there somewhere.

 

Anyone have any idea where it would be? Boxpin, you sure you didn't have that plug?

 

Hmm... I wish I would have knew about this before I retrofitted my headlights one last time. I'll try and look, but it might be asier for you guys. I have tooooooo many wires. I'll check a local junker.

Wow, Gilber's thread is more popular then mine!

 

I had my entire front end off including my radiator support...Clear shot of all my wires...not there for me.

 

that's cause I've been asking a million questions trying to figure this car out

Alright, It's gotta be there somewhere then. If I get to my suspension this weekend and I have the car jacked up I'll take a look.

 

I ask half my questions on your thread :P.

 

Lol.

I can't stop thinking about the driver's side fog plug now, I just want to find it.

 

Check this out:


850 – FOG LAMP INSTALLATION
Early 850s were criticized for the lack of power emitted by the factory fog lamps. Whether it was the wattage or lens design, the end result was the
disappointing effect of the lamps. Not to be confused with driving lamps or auxiliary lamps, fog lamps are designed to direct light directly in front of the car
at the same time spreading the light to the sides. This in turn illuminates the road markings which become hidden in dense fog. Installing aftermarket fog
lamps on the 850 is made easy due to Volvo providing pre-wiring from the dash to front of vehicle.
Running from the underdash and arriving behind the battery is a harness specifically available for fog lamp installation. I installed “Maxim” fog lamps that
are oval in shape and output 55 watts of white light. You will need four additional parts for the installation that are available from you local dealer. They
are:
1) Switch, PN 9128536 @ $37.21
2) Relay, PN 9494424 @ $37.81 (thanks to billy ray - the redundant part number 9134580 that was previously listed here is to be ignored)
3) Relay Harness, PN 9134498 @ $28.31
4) Lamp Harness PN 9134580 @ $37.81.
When purchasing your aftermarket lamps you will find that there is a wide choice of makes, styles and colors available. Everybody from department
stores to auto specialists sell lamps ranging from $50 to $300. My advice is to pay attention to the quality of the housing, bulb type, and ease of bulb
replacement. The “Maxims” that I purchased are made of steel, have a clear lens (white), and use the popular H3 55 watt bulb. The type of bulb is
important as some manufacturers use odd bulb designs that are later hard to find and replace.
Begin by locating the prewired harness running from the under dash to the front of car. Inside the cabin, remove the knee bolster and search for a bright
yellow multipin connector hanging near the relays. This is where your relay harness plugs into. The other two ends of the relay harness are for the switch
and the relay. Where they connect will be obvious. The switch is intalled next to the headlamp switch. Remove the blank cover by popping it out and snap
the fog lamp switch in its place. On my ’94 the blank cover took up two spaces and I had to purchase an additional single space cover to fill the remaining
gap. The relay just hangs in the air off the harness, so I tucked it up into the dash where it remains secure. If confident you can now return the knee
bolster or wait till the installation is complete in the event you need to return and check your connections. Under the hood behind the battery you will find the other end of the pre-wired harness. *****My Favorite part, I found it***** There is a dummy plug that needs removing and is a good indicator that you have found the right harness. The lamp harness plugs into this location. You will also find a ground connector hanging from the lamp harness. The female spade plug connects to any of the available male plugs that are part of a ground rail found at the same location behind the battery.
I ran the lamp harness down to the front spoiler, feeding the harness through available space found next to the radiator. The fog lamps were screwed to the under side of the front spoiler in the spaces found either side of the licence plate space. You have some flexibility here to choose your own location.
Keep in mind that you need access to the bulbs when they need replacing. This alone narrowed my own choice and pretty much dictated where the
lamps were going to be installed. The lamps then plugged into the lamp harness. Finally the lamp harness was tucked up into the spoiler and held in
place using cable ties.
With the installation complete, my fog lamps work independently of my headlamp switch (yours may differ) and the off/on switch illuminates and dims with
the rest of the instrument panel giving a complete OEM fit and finish. Special thanks to Joe Nash at the parts counter at Volvo Villa, Hwy #7, for his advice
and valuable suggestions for installation.

 

I just read that and ran back down to my car to check. I found a connector that was plugged into a blank. There was only one wire, BUT, it was the same color as the fog power wires: green/orange. The plug that I found on the passenger's side is NOT the fog plug either, wrong color wires: green/gray. I think this is the one I need, I have to run a wire from this each of the fogs I assume (according to that post from boxpin), and from the fogs run the negative and ground it out somewhere (probably on the ground rail by the battery. According to this write up, it says that the harness is behind the battery, if you're standing in front of the car, it's in front of the battery, between the battery and headlight. I took pics. Give me a second.

 

Hmm. I have thought that has been it but I never guessed. I have always known where that one was, but I thought it was for some other option or something.

 

It's just the green/orange wires, no ground on it, but just like the thing that boxpin posted, the lamp harness has the ground on it. Legend, that'd be something that could easily be made isn't it? If you solder everything and what not?


Damn, thanks boxpin for that. I think this is it. The guy who I ordered the inside harness from asked if I needed the front harness, I had no idea what he was talking about, but this is what he was referring to. But it sounds like something I can easily make.

 

If you look RIGHT under where your hand is on the bottom picture there is a row of plugs that you can use for a ground. if not, you can tap into the headlight ground. Go to a hardware store and look for the quick wire splicers.

 

Yeah, I noticed those, I thought that's what they were. Damn, this is a relief knowing for sure how to wire them in now. The guy that is sending me the harness for the switch confirmed that that is the right plug.

 

Nice work guys, nice teamwork . Lmao.

Anyways! Use that "Ground rail" like said in Boxpin's post. I'm not sure if you would want to work a relay into after the factory relays but I would find a way to do that. I'm kind of happy I'm wired that way now. Now if I want to wire up something else I can use the foglight harness :P

 

The relays attach to the harness that plugs into the yellow socket, so I'll have relays and what not. Everything will be OEM on this installation except the wires running from this connector in the pics to the lights, everything from there back will be how it was supposed to be.

 

Idk if I would trust the factory wiring though. Can you find one on the other side? If so, then I would trust it, but if not, then I wouldn't want to see 12v 110W going through that little 18AWG wiring.

 

Find one what on the other side? A relay in the cabin?

 

The passenger side foglight plug, if there is one.

 

No no no. That isn't a fog light plug, the wires are the wrong color: black and green/gray.

The separate harness that you buy for the front, the "lamp harness" connects to that and then splits into two plugs for the both fog lights, and the ground splices off of this harness. The guy I got my fogs from left the plugs in the fog lights, so I have the plugs and about 6" of wire on the fogs themselves. So I'm just going to make my own harness.