E30 Lighting Guide + DIY Bi-Xenon Conversion

**Wareagle32789** · 02-13-2026, 10:51 AM

I'm replacing my OEM sealed beams with a set of headlights that have the "smiley" style daytime running lights (DRLs). I have power figured out for the low beams and high beams, but I'd like to know where I can tap into a wire under the hood to trigger the relay I'm installing for the DRLs. I want one that is only hot when the ignition switch is on. Any suggestions?

**slippery** · 04-27-2026, 10:02 AM

Sucks that most of the pictures are lost ... and that rallylights is also gone. Should've checked this thread 10 years ago.

**Panici** · 2026-05-04T17:51:32+00:00

Originally posted by slippery

Sucks that most of the pictures are lost ... and that rallylights is also gone. Should've checked this thread 10 years ago.

Archive.org is super useful for old threads.

Here is the link to this thread, with a bunch of original photos:

E30 Lighting Guide + DIY Bi-Xenon Conversion - R3VLimited Forums

https://web.archive.org/web/20191020215256/https://www.r3vlimited.com/board/forum/e30-technical-forums/appearance-cosmetic/lighting/339321-e30-lighting-guide-diy-bi-xenon-conversion

Headlamps, taillights, sidemarkers, or general exterior lighting.

E30 Lighting Guide + DIY Bi-Xenon Conversion

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