Been getting some buzzing when using my LED turn signals and one of the suggestions that Custom Dynamics had was to move the negative wire of my control module to the 'ground' instead of the negative terminal of the battery.

They said it should be located in front of the negative terminal of the battery. However I am not seeing anything that looks like a ground in front of the negative terminal. Anyone know where this is? 2013 Ultra Limited.

Haven't pulled off the side cover yet to check over there. Will do that shortly.

 

Never mind I think I found it.. about 4 inches down on the frame. Wasn't expecting it to be buried down there..

 

Yep, that's it.

 

You got it, it's never too far away, but of course it's not the easiest thing to access.

 

Anyone know what size socket that thing is? I don't have an extension for my smaller deeper sockets and can't get a good feel for what fits. I'll have to head to home depot and pick up an extender but need to make sure I have a socket that fits as well.

 

Unless its a metric size? It seems like none of my standard sizes are fitting properly but I only have a few deep socket ones so I am not sure if I am just not able to get it on there properly without an extender or if its some off-size I don't have. Maybe I can get a wrench down there to at least check the size unless someone knows off-hand.

 

Battery posts are 10mm ..... try that.

 

Years ago I bought a complete set of Metwrenches, that fit both American and Metric. In fact, they fit my old British Whitworth bolts and nuts, too. The box end wrenches and sockets contact the flat of the bolt heads and nuts, and never round off a corner.