Two wires on the alltrax to go

[Hit it like a champ]

http://www.buggiesgonewild.com/attac...1&d=1533738660
Ok I have 2 wires to go and I think blue one goes to the positive and the black with white stripe goes to the negative of the battery but do I connect to the first battery or positive of the first and the negative of the last. The harness branches off to the tail lights. In the pictures I took I can see the blue one to the positive terminal I can see the black one but it gets lost in the picture. My cart is a 2014 precedent IQ. Thank you Jerryhttp://www.buggiesgonewild.com/attachment.php?attachmentid=173662&stc=1&d=1533739 460