With the tail light removed, I inspected it & it was obvious where the new rear fog light would be installed:




So with a knife, I cut out the red plastic filler. I used a needle nose pliers to make sure I could grab the filler part & not have it fall into the tail light:




I then inserted a new light bulb into a new bulb holder and then twist tightened it into the new open spot on the tail light:




Then I put the driver's side tail light back into the lower tailgate & did the whole procedure the same way for the passanger side tail light:




Again, starting on the driver's side, I unclipped the white cover off of the black wiring connector to expose the bushing contacts:


I grabbed one of the bigger bushing contacts (61-13-0-006-626) and inserted into the open spot:




And then did the whole procedure for the passanger side connector:


Then I tucked the wires from both of the new bushing contacts & combined then to be connected to a new 18 gauge wire:








Now I investigated how a new wire would run from that connection to the TCM. I found the rubber grommetting part & pulled it off of the lower tailgate. From here I used a straightened wire hanger & pushed it through the center of the rubber grommetting part, into the TCM area. I attached the 18 gauge wire to it from the inside of the X5 with electrical tape and pulled the wire through:






I then undid the 18 gauge wire from the wire hanger, ran it into the lower tailgate and reinserted the rubber grometting part back into the lower tailgate. I pulled enough wire so that I could connect the 18 gauge wire to the connector of the bushing contact wires:


Then I replaced the metal part to cover over the wiring:


And connected both wiring connectors back into each tail light assembly:




I then proceded to re-install the rear tailgate back together:

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04 X5 4.4i Dinan TB/BL, V1 Hardwired, Intravee II, MRTM Design E53 Pedals & Door Lock Studs
08 E90 M3, JrzB/BB, 360 Forged 8 Mesh, H&R Springs, RPI Scoops, Eisenmann Sport Exh, VRS Lip, CF Decklid, CF Diffuser, OSS LED AE, Rear Headrest V1, '09 iDrive Controller, Euro Rear Fog, OEM BlackLine TL, MRTM Design E90 Pedals & Door Lock Studs
05 E46 M3 Dinan S3-R S/C...FOR SALE