Where is a good place to ground the amp to, on the bike? The amp will be installed just above the radio, in the bat wing.

Thank you

 

I grounded mine back to the main ground near the battery

 

The ground bolt on the top of your triple tree on the left side works good and it is within the recommended distance from the amp, but it has thick paint on it, you will need to grind it down to metal before you use it. Sandpaper won't work, you'll be there all day, if you don't want to use that then you should use the battery terminal.

 

Use a volt meter when you have the bat wing off and locate a ground that should already be in the bat wing.

 

i grounded mine at the fork...one of the bolts...about a foot away from the amp...

 

+1, close to amp, easy to run the wire, and not noticeable.

 

It really isn't good idea to ground anything to the forks. The path back to the Battery is through the head bearings. That can be intermittent and/or pit the bearing. Amp power should really go straight to the Battery. My amp puts out 400 watts. That's a good bit of current in 8gauge wire.

 

Correct you should never use a bearing as a ground path. It can cause premature bearing failure.

I was told by a professional installer not to carry the ground back to the battery, but instead ground up near the front of the frame. If you ground to the battery it will enhance alternator/generator noise in the amp. By grounding to the frame you are using the mass of the frame as a buffer for the charging noise.

 

rockford recommends running a ground directly to the battery.

 

I pulled the wire through the wire harness conduit then used a forward gas tank bolt on the frame.