Reddit reviews Gebildet 12V 24V Standard Add-a-Circuit Fuse Tap, ACU Medium Piggy Back Blade Fuse Holder with Wire Harness, 6 pcs Standard Fuse (3A 5A 7.5A 10A 15A 20A) and Fuse Puller (Pack of 4)
We found 2 Reddit comments about Gebildet 12V 24V Standard Add-a-Circuit Fuse Tap, ACU Medium Piggy Back Blade Fuse Holder with Wire Harness, 6 pcs Standard Fuse (3A 5A 7.5A 10A 15A 20A) and Fuse Puller (Pack of 4). Here are the top ones, ranked by their Reddit score.
Package included: 4 pcs fuse holder, I pc fuse puller and 6 pcs standard fuse (3A 5A 7.5A 10A 15A 20A).Applicable Fuse: ATO ATC standard 6.3mm blade fuses and stand up to 20 AMP each slot.Premium material: the 16AWG wire lead is made of good quality ABS & copper wire.The fuse tap turns one slot into two slots, provides one fuse holder to protect existing circuit, and a second fuse holder to protect new circuit.Easy Installation: 1. Simply remove an existing fuse from the fuse box, insert that fuse in to the bottom slot of the fuse tap. 2. Insert a suitable fuse for the new accessory in to the top slot. 3. Crimp your new live wire to the blue butt terminal on the fuse tap.
You could just grab the 12V directly from the fuse box using something like this. That's what a lot of dashcams do. Just select one with a fuse and wire rated for the current you want. You can also use a separate fuse for the charger and the raspberry pi if its that much of a concern, then just use a step down converter to power the pi and power the stepper motors directly off the 12V line.
If you want to get really fancy you could have a separate battery for powering your system, then charge that battery with a 12V line from the car. That kind of system would be a lot more resistant to interruptions from the starter motor.
Hi,
I found two different video's where they tell you which harness & wires are to be used for the main speakers between the two different style head units, for MK6 Jetta's respectably. If you have anything other than a base model, your car will likely have tweeters as well, not to be confused for the line out converter install (and if you have the Fender setup then I have no clue). I may be able to find the diagram somewhere that I used for my LOC setup. Good luck!
The LOC/harness wiring is described @ 5:50 for this one
and
This one starts at 10:35 for the wiring - I personally don't like to use the "piggyback" wiring connectors this guy uses & suggests; rather wire in anything power related with an inline fuse box setup so it's protected.