Three pin wiring polarity?

[Treps]

I am planning to use a 3 pin power lead to connect Denali D4 lights. I will use a socket from an old Yamaha heated grips lead. It has two cables, one brown and the other yellow with red line. Which one is +ve? I assume brown but I’d rather check before burning expensive bike electronics… Many thanks. 

[bth2]

i think there are 2 + ve and one - . others will expand im sure.  check out the drawing if you can.

[Treps]

10 minutes ago, bth2 said:

i think there are 2 + ve and one - . others will expand im sure.  check out the drawing if you can.

Thanks. The OEM Yamaha lead (triple, white triangular shape) only has two wires 

[Treps]

You are correct looking from the bike side! I should have asked from the bike (supply) side, yes there are three cables, one black, and two which look identical, red with white line. Which is +ve? Both red ones? Thanks.

…and sorry for the numpty questions… 

[Hollybrook]

Why not measure for yourself and be 100% sure?   You can buy a decent multimeter for under $20US:

 

https://www.amazon.com/dp/B07DW681FQ/ref=cm_sw_r_apan_i_EHNMQGMJK35AP856MK3A?psc=1

Edited May 24, 2022 by Hollybrook

[Lewie]

Do my pics here help?

 

[Treps]

16 minutes ago, Lewie said:

Do my pics here help?

 

Thank you Lewie. Perfect, very helpful. 

[Treps]

On 5/24/2022 at 4:12 PM, Lewie said:

Do my pics here help?

 

 

D4s now wired up and working, many thanks. This link was very helpful. 

[FredBasset]

Can anybody help answer this please, why does the Aux 3 pin sumitoto connector have two live positive wires and one negative, and does it matter which one you use, when wiring up heated grips or sat Nav?

[RideID]

@FredBasset correct, 2 positive and 1 negative. You should be able to use either positive, that’s what I did for my heated grips. Both are switched power. Hope this helps.

[FredBasset]

Cheers RideID, just wondered why it had two positive wire, maybe something to do with Yamaha OEM spot light system?