I have honda amaze base model. So i have upgraded to company fitted stereo, and frint speakers also. But now after using it for 1 year. Now i want to install back speakers, i have arranged original from one of the amaze top model owner, but now he have not given me ribg adaptor for these speakers as he upgraded his speakers and used that ring adaptor for spekers in his new speakers. And now i have original amaze rear 4 inches speakers. But i dont have ring. So how to install these speakers? Because trunk rod is touching while i tried installing these spekears.