Explained: How to tap power for retrofits & accessories in a VW Polo

The contacts and wires you will install or the wires already present will be locked by a Pink Locking tab, which needs to be slid out before we can insert a new power line into place.

BHPian fluidicjoy recently shared this with other enthusiasts.

When I received my OEM Bixenon Headlights, I still had not completed the BCM Max upgrade and so I needed to use an emulator to enable most of the primary functionality of these headlights. The emulator is wired in to the stock headlight connector, but it also needs an independent line of power, which we take from a small fusebox located next to the battery.

This fusebox is enclosed by a waterproof lid, which can be simply taken off by prying from the sides, as illustrated here.

The contacts and wires you will install or the wires already present will be locked by a Pink Locking tab, which needs to be slid out before we can insert a new power line into place.

You don't need to remove the pink locking tab all the way, unless you're using the last socket. The bottom of the fuse-socket will also have a rubber stopper for waterproofing, so make sure you push that down and out of the fusebox, before inserting a new wire into the fuse point. I completed the wiring with a 15A fuse.

Make sure to slide the locking tab back in place. You can very well use this engine fusebox for other accessories that require power like HIDs etc. This is a much cleaner way compared to directly tapping power across the Battery, which is the common Jugaad many folks might be tempted to resort to. Test the fusebox to check if the electrical fuse-point is active when ignition is ON or if it is always ON as this will determine if this particular fuse point is right for you. For the Bi-Xenon Headlight emulator, I did not have any electrical issues or parasitic drains, but as I write this two years later, I do not remember what kind of fuse-point it was. Here's a look at the stock T10 Headlight connector, in front and rear view, and the here's the plug and play emulator which goes into the stock T10 socket.

I believe this small post shall help many folks who wanted to add a thing or two in the engine bay. With this writeup out of the way, I can complete my writeup about the Bixenon Headlights themselves.

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