i have a 2009 forester with a drop in kit. was wondering where people ran their cables? since the headlight is behind that plastic cap thing, do people just run the cables through the existing rubber grommet thing? or some other way??
"Fishing" through existing grommets may be difficult, particularly if you aren't fond of cutting and re-splicing the aftermarket kit's wiring, if their connectors are too big to travel through existing holes/ductwork.
Usually, it's much easier done to just drill a hole of the necessary size through the plastic dust-cap that seals off the back side of that particular bulb/area. A bit of silicone sealant or other adhesive will then again provide a weathertight seal around the cut and the typically supplied grommet present on the wiring of the HID kit.
Replacement dust-caps are typically very reasonably priced, out of the many choices of on-line OEM-Subaru parts retailers that are available, should you desire a stock replacement for resale, etc. :smile: