[Flashx4]

Hi
New to the forum and have read a few threads on upgrading the BMW audio with an after market amplifier to run an additional subwoofer. I know there are many threads on here but can not find an answer to my issue with upgrade. I have the standard sound system with I drive seven. It is a base RAM with DAB+. I simply want some additional base as the factory sound is mediocre. Has anyone mapped out the wiring to the new RAM module or is there a plug and play adapter that works for this unit. It is a 6512 RAM base DAB+ with 4 door speakers 2 6" mid woofer under seats and a single dash mount speaker. Note this is an Australian delivered car. BMW X4 G02 2.0i motosport.