jimny speakers vibrations problem

hey guys I finally replaced jimny front speakers with 2 pioneer TS-D1002R..now i am facing a vibration problem...if i listen to electronic music or any music with a heavy bass it starts to produce noisy metallic vibrations that make songs impossible to be listened...what can i put between speakers and car body to prevent vibrations? here is a picture:

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I used some 6mm thick plywood to build an adapter to mount the speaker. Cut the hole for the speaker using a jigsaw, and drill 4 holes so that you're able to mount the speaker using all of the 4 mounting points the speaker has, this will prevent vibration. Allows more power to be used to actually play the music, not to rattle the speaker against the metal.

Get a sheet of sound proofing the self adhesive type cut it to shape and re mount the speaker

And just checking they are wire correctly??

yes i think they are connected in the right way...i cutted stock suzuki plug and connect directly 2 cables.. speaker positive one with black striped cable and negative with other one..

As Awiz said, use all 4 mounting holes, it looks like you have only used one plus part of another one. When i upgraded my front speakers at first i only used 2 mounting holes as they where the only ones to line up.Suffered from horrendous vibration so stripped it all down again and drilled the other mounting holes and properly secured the speaker, problem solved !! . Also try to waterproof the speaker connections as my o/s one's had corroded off, hence the need to replace/upgrade them

nice man thank you...so i am gonna use all 4 mounting holes, is it safe to drill around speaker hole? i mean i don't risk to break something placed behind car body?