HID ballast wire not long enough to reach battery terminal

[Doublex5150]

Hi I am in the process of installing some HID headlights and I am having an issue. My problem is that the power wire coming from the passenger side ballast isn't long enough to reach the battery terminal. How would you suggest I get this thing powered? I'm completely out of ideas and google isn't offering much help.
(not shown) there is also a black wire which I have grounded, but it's this blue wire that needs to be powered. On the driver's side ballast I have the blue wire hooked up directly to the battery, and when I turned on my headlights the driver side headlight is working. It's just that my passenger side headlight won't turn on evidently because it's not getting any power.

Any suggestions or advice?

 

[canadiankodiak700]

First of all, they should be hooked to a relay, not directly to battery. But aside from that just extend the wire. Use abutt connector or solder on another lengthe of about 14ga primary wire. Nothing special about it.

 

[hunterdan]

Which hid ballasts are those? Are you sure the blue wire goes to power? Usually if they are to get battery power, they run off a relay kit, not power going into the canbus adapter.