Have std (very) UK M5 audio system no dsp.
Spoken to several specialists and all suggest different
things, I would like to upgrade with 6x9s in the back shelf
decent speakers and tweeters in the front and amps
to suit with a Mission (thats a maker not a position)
sub and amp in the boot.
From experience would like 6x9s as better sound than
std speaker size upgrade.
Has anyone fitted 6x9s in the shelf - assume some cutting
as I had to do on the E34 but that had a stealth shelf to cover.
Sub in boot - will it work ok as BM trunk / boot area welll sealed.
Any ideas on amp hook ups - the head unit is in dash / cd in boot
and I'm told the amp is boot mounted - nothing obvious.
Advice welcomed or an alternative upgrade that works.
Cheers.