pokemon wrote:You sure it is coming from the Nuvi speaker and not from the ball joint of the mount ?
How can I ascertain it is from the ball joint of the mount?
I am only speculating where the noise can come from. You need to do some deductive analysis.
You mentioned in your earlier post when I adjust the Nuvi 765 position on the fiction mount, the cracking sound might disappear. Remove the ball mount and investigate. It is mechanical so your personal inspection is required.
The other thing could be a bad electrical contact to speaker ? This requires some skill and know-how of removal of nuvi covers to investigate