[KK4MEI]

Is it possible to get competition sound in an E90 using the OEM head unit? Im looking for mere than jut up grading.

[ctuna]

What do you mean by that a db contest or and audiophile system.
What do you mean by a head unit idrive/nav or pro radio.

Talk to Unexpected Creations in NJ or MusicarNW in Oregon.

[taibanl]

Yes, the e90is a fairly good platform. The 4” midrange and tweeters are ideally placed for good frequency response. There is a bit of a challenge bridging to the midbass frequencies of the underseat 8” but it can be done.

With the OEM HU for competition use you would want to use the digital MOST bus output into mobridge da-2.

[ctuna]

Have a look at Jehnert Doorcards which can contain
up to four 6.5 inch speakers.