If you have space for 2 pairs of HID projectors, and want to be able to use each pair on demand, this is an example of how it can be done. I did this for my 2nd bugeye retrofit, but didn't have much detail in the build thread.
What do you need:
Since we will be creating a new harness that builds on top of the existing 2 harness sets, some crimping tool, heatshrink, etc. that you prefer for installing connectors at the ends of wires will be needed. For some of the ends, I also soldered the wires inside the crimped connectors for good measure.
Table of contents
What do you need:
- Two sets of HID set (harness, ballasts, projectors, HID capsules) in the same way you'd build regular quad biX setup; plus:
- One 3 way switch
- Two relays with an "always connected" pin
- Cable and connectors (I chose 16 AWG thickness; these are probably more than enough for "signal" level wiring for this DIY; might not be thick enough for "power" level wiring)
Since we will be creating a new harness that builds on top of the existing 2 harness sets, some crimping tool, heatshrink, etc. that you prefer for installing connectors at the ends of wires will be needed. For some of the ends, I also soldered the wires inside the crimped connectors for good measure.
Table of contents
- Parts list: posts #2-#5
- Example OE connector check: post #6
- Steps for dual filament OE bulbs (e.g. 9007 & 9004): starting at regular biXenon, post #7, to reqular (full-time) quad, post #8, to 3-way switchable quad, post #9.
- Steps for single filament OE bulbs (e.g. H7 low + H1 high): starting at regular biXenon, post #66, to regular (full-time) quad, post #67, to 3-way switchable quad, post #68.
- Example switch setup through the firewall, post #10 - 14
- Discussion on what 3-way switch to choose, post #31
- Variations for the dual filament bulb, post #38 - 40
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