Im adding the e30 m3 antenna onto my 325iS. I was wondering if any of you m3 guys could enlighten me on the installation, like how many holes I have to drill and how exactly it attaches to the roof.

TAI,

Kyle

Hey Kyle, I had mine off once. I think there is just one hole approx 1/2". The most difficult part will be routing the wire, that I can tell you will be a pain, I have seen it here and there, just about everywhere!

The E30 M3 antenna wire runs to the right A-pillar and down to the dash. It's a bit of a PITA, but doable...