Hi all i am glade that i have joined this forum as i think i will engoy being a member.
I have had several BMW's over the years with the last being an e46 320ci and 330ci. the 330 was the most interesting as i retro fitted a full harman Kardon sound system along with bi-xenon headlights, LED rear lights, Electric rear blind, voice active bluetooth and CSL pedal shift steering wheel.
That car came with sat nav as standard.
So not really a novice with type of work.
I now have a 525d M Sport with most of the same stuff factory fitted but i am looking into fitting a DAB radio and LED tail lights.
I hope i can be of help