Hi all, I notice that I have a speaker that is vibrating / rattling but only when something is playing at a certain frequency i.e. bass etc. It is very difficult to pinpoint which speaker it is coming from. Does anyone have any suggestions on the best way to pinpoint the offending speaker? Are there apps that can be loaded onto an android phone and played through the system that might help with frequency etc? Anybody had to tackle such a thing? It is 2019 AB with the 1280W system. _______________________________________________

2019 4.4 V8 Diesel Range Rover Autobiography, Byron Blue

With Apple Music there are test tones available across a range of frequencies. I assume others such as Spotify etc would have something similar.