Harness

I have a 2004 Cayenne S. I get the dreaded "check left cornering light" over and over again. Sometimes simply pulling the headlight out and reseating it does the trick, but almost always after a couple of trips I get the warning again and the cornering lights won't work. Both wiring harnesses (right and left) have a broken clip, so they are not properly secured for the headlight to slide in to. I would like to go ahead and replace both harnesses in case that would resolve the cornering light issue, but I can't see the back part of the harness well enough (the black part where it's connected to the car) to figure out how to remove it. Anyone have any idea?

I have a 2004 Cayenne S. The downward facing courtesy lights on both side mirrors are out. I have scoured the Internet and haven't been able to find any good instructions on how to get to that light bulb in order to replace it. It's seriously driving me slowly insane... generally I consider myself pretty good and figuring things out, but I really don't want to break a mirror in the process of replacing a $.92 light bulb. Any help would be greatly appreciated.

Can you be more specific as to how to dismantle them? My lights are out too and I'm coming up pretty empty on web searches.

I'm trying to do the same thing currently. I have a 2004 Cayenne S (Lapis Blue on Gray). Here's what I have done so far: 1. Replaced the 18" wheels with 20" Cayenne Sport Design wheels for a sportier look. Yes, 21" would have been more authentic, but I got a hell of a deal on a used set of 20's. 2. Had the brake calipers painted red by a local mod shop, provided them with "Porsche" decal templates from Rennline for the white lettering (tip: get the largest ones they offer for both front and back, they turn out great). 3. Tinted the front windows to match how the rear ones came from the factory, which REALLY improved the look more than I expected. 4. Replaced the amber side markers with clear ones. Right now I am trying to find the rear tail lights that match the new look. eBay has a bunch but the knock-off artists put two clear lenses on each instead of just one. About two months ago one of the sellers was making them with just one clear lense, but now I can't find them. I just now sent a message to each of the largest sellers to see if they can provide them with just one clear lense. Here's my agenda for the remainder in the order I'm going to do them: 1. Install a set of LED running lights (available on eBay, search "Cayenne running LED") 2. Replace the factory rear spolier with one that has a GTS-look (courtesy of the knock-off artists on eBay and my local body shop) 3. Install a set of H&R lowering springs (The 957 GTS is about 1.5" lower than the 955 S) 4. Install Remus Sports Label Exhaust System for better sound/look than stock. I researched this a lot and ultimately decided Remus had the best solution. Ultimately, I'd like to replace the front/rear bumpers and add side skirts, but that's down the road a bit. There are quite a few interior upgrades I'm getting in the short term but those aren't really relevant to the GTS look (with the exception of the headrests with the Porsche crest). This is a project car to say the least... but I love it and it gives me something to do : )