This is on a 2017 Road Glide Ultra. The right rear speaker only vibrates a little , no sound. I thought it was a blown speaker so I bought new DD Audio VO 6.5N to replace the Alpines I had. Same issue, 1 works, the other doesn't. This is what I have tried so far:
1) Swapped speakers...same result so I know the speakers are good
2) Removed fairing and swapped the rva jacks on the 2 biketronics line levelers...same result
3) Used a multimeter to test ohms coming from amp....all bounced around so either that is normal or I don't know how to use a multimetere (probably a little of both)

I haven't taken the amp out yet but it doesn't look like any wires have broken off...maybe a terminal screw is loose (do they ever vibrate loose???). Before I pull that I'd like to hear from you guys if I missed something obvious.

Thanks

 

Just to get a picture of what you are dealing with, what amp are you running?

 

It's an arc audio 600.4. I have narrowed it down to the amp. I switched the plugs coming out of the amp and the issue moved to the front speaker. Is it likely that 1 channel is bad?

 

That or it could possibly be the plug.

 

I have a bud that recently had a channel on his 600.4 take a shix. His was out of warranty but think he sent it to ARC and they provided an estimate for him after diagnosing. IIRC it was under $100.

Run that DMM on the amp output channels, and that should narrow down what ur dealing with. But keep running upstream after u test as it could be a LL or connection in that direction, all the way to the HU output.

T

 

Thanks for your help guys. I got lucky, it turned out to be an rca jack was making a good connection.