power port

[N0tac0p]

not sure which one i'll buy, but wondering where's the best place to wire it to?

[rug_burn]

   Yeah:  that's a good question!   Come to think of it, I've never seen the Valk's fuse panel, if it has one.  
  I suppose that's a good commentary on the reliability of the bikes:   never had to fix anything there in 182,000 miles.
   I was thinking about the same thing, too.   It would be nice to not have to go directly to the battery, even to have a stock fuse position on the panel.   I'll check that-

[Skinhead]

I would run an inline fused power supply connected directly to the battery with a relay controlled by the switched accessory lead.

[N0tac0p]

switched accessory lead from the key switch?

[The emperor has no clothes]

One of these is the best way to go. There are others cheaper.

https://www.easternbeaver.com/Main/Wiring_Kits/Fuseboxes/PC-8/pc-8.html

[Skinhead]

switched accessory lead from the key switch?

There are 2 accessory leads (female bullet connections) usually located under the right side cover in front of the battery box.  They may or may not have something connected to them depending on whether any modifications were made to the bike.  One of these leads is Hot all the time (I believe, could be hot while key off, I can't recall for sure), the other is hot when ignition is on.  The function can be checked with a test light or multimeter.  The coil of a relay can be wire to one of these leads to control power to a direct line from the B+ to your aux fuse block. 

[Fazer]

One of these is the best way to go. There are others cheaper.

https://www.easternbeaver.com/Main/Wiring_Kits/Fuseboxes/PC-8/pc-8.html

+1 on the Eastern Beaver.  I had a cheap unit until it shorted out and my dan marc quit working, stranding me. 

[rug_burn]

So we got two wires there in front of the battery-  But which one is best? 
    You got the one always hot, which is good if you want to be able to charge your cell phone or whatever while you're having dinner, in the bar, etc, or just parked.  But if you leave it connected for a long time, and forget, it can drain the battery... maybe.   
    Then you got the one where it's only on when the key's in and turned.   But that kind of makes it a little inconvenient, doesn't it? 
    If you're installing a 5 volt USB port, even a 2 amp outlet gives you about 10 watts at full 2 amp rating, which doesn't happen too long when charging a phone, but with other stuff, it could.   And then the power consumed from the battery will be a little higher, since nothing gives you 100% efficiency.
   Maybe what's needed is a timer or device to cut off the port?    I'd just hate to have to push start my Valk... (again)
       

[Jersey]

One of these is the best way to go. There are others cheaper.

https://www.easternbeaver.com/Main/Wiring_Kits/Fuseboxes/PC-8/pc-8.html

+1 on the easternbeaver as well.  I don't have one, but know this is good quality. Plus it takes all the guess work out.

If you just want to add ONE power switch, then you buy the parts to make one of their 50A Relay Kit ‘Shorty’ setups... basically a single relay triggered by the key on.

[gordonv]

not sure which one i'll buy, but wondering where's the best place to wire it to?

I take it you are referring to a USB or aux plug port, to have power to ?

As already mentioned, what ever it is, it must have a fuse. All I've ever seen, all come with a fuse.

Next question is how do you want it to behave. Always on (I did), add a switch (like ChrisJ?) or via the ignition (switched) power?

I didn't worry about always on, because there was times I wanted to be able to leave something on the bike charging. Then where I had it (GW front pouch/trunk) wasn't noticeable. I also had one mounted external, which was highly visible, so I wouldn't leave things plugged in (air compressors, etc.) and I also didn't worry about continues (fused) power. A lot easier to install too. 

[CoreyP]

switched accessory lead from the key switch?

There are 2 accessory leads (female bullet connections) usually located under the right side cover in front of the battery box.  They may or may not have something connected to them depending on whether any modifications were made to the bike.  One of these leads is Hot all the time (I believe, could be hot while key off, I can't recall for sure), the other is hot when ignition is on.  The function can be checked with a test light or multimeter.  The coil of a relay can be wire to one of these leads to control power to a direct line from the B+ to your aux fuse block. 

Thanks that's useful info. I spotted the 2 accessory leads and was wonder what they are for, now I know that they can be use for.

[Jims99]

I put one on both mine and have them on a switch. The tourer is on a switch with the Bluetooth speakers and mounted next to key. The interstate is on a switch mounted on dash and considering adding the radio to the same switch. The power ports I got have a built in battery display. You can easily check charging and voltage.  I see no need for a relay, draw very little power.