Hello there! I own a BMW 525D from 2005 and I would like to Code some Features.

1. How can I code folding mirrors at locking and unlocking? I have a button on the inside which does that but I would like to happen automatically, and I don't have a keyfob. If you guys tell me to use the Buttons from my key they don't work because my diversity antenna is broken.
2. Anhänger elektrik is in german, in English is something like Trailer module broken which appears on the screen at every startup, tried to delete $235 in both CAS/LMA but didn't work.
3. Help my speakers Sound louder at the aux and în general, I want the speakers to Sound louder even at the Radio.