Wiring and control accessory
A single-output harness for compatible auxiliary lamps
DD4104 is a heavy-duty DT four-pin harness supplied with a toggle switch and OEM auxiliary-switch adapter. Its mechanical relay gives a backlight/off/main-light switching path for compatible lamps.


Product facts
Included part and technical limits
Compatibility
Check the complete installation
The manufacturer describes DD4104 for compatible Stage Series pods with backlight. A matching connector shape alone does not prove universal Glass Is Class Gen 2 colour or dim/high behavior. Check exact leads, lamp load, relay behavior and the full 9–16V circuit; a separately rated 12V/24V bulb does not authorize 24V operation for this harness or a complete pickup kit.
Product questions
Frequently asked questions
What comes with DD4104?
One harness, one toggle switch and one OEM auxiliary-switch adapter. Lights are sold separately.
What voltage does the harness support?
Diode Dynamics specifies 9–16V. Do not connect this harness to a 24V supply or assume a complete pickup-light kit is rated for 24V.
Does it provide switch-panel dimming?
No. The mechanical relay does not pass switch-panel dimming through the harness.
Does a DT four-pin Gen 2 connector guarantee compatibility?
No. Check pinout, lamp leads, switch behavior, supply voltage and full circuit protection for the exact installation.
What auxiliary-light load is listed?
Up to 25A of auxiliary lamps is listed. It is not a count of Gen 2 lights or permission to exceed other circuit ratings.
Plan related parts
Choose each part separately
Review light mounting and wiring checks
Use the guide to inspect physical mounting and part-number wiring questions before routing the harness.
Warranty and support
Warranty terms
Diode Dynamics lists a three-year warranty for DD4104. Keep your BTS order information for a claim.












