[srironman911]

Originally Posted by srironman911

Great, did some research and
1. Swap out front speakers with Etons B100W
https://www.amazon.com/Eton-10-Way-C...ilpage_o00_s00

2. Swap out rear deck speakers with JL Audio Evolution 4" Coaxial Speakers
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

3. Add the Technic ASD bypass harness
https://technicpnp.com/product/asd-bypass-harness/
contact technic and make sure right one...
http://technicpnp.com/contact.html#

4. BMW weather stripping on front door
Part numbers
51487300493 $14.78

51487300693 $14.78
part is called a Sealing Side Pan

5. Ebay BMW OEM Speaker Connector Harness Pigtail

http://www.ebay.com/itm/BMW-OEM-Spea...-/161420349903

Hopefully this is a good start as recommended by member selmeralto, I'll also ask him in his post...

Found 4. BMW weather stripping on front door part number incorrect or?
Original
Part numbers
51487300493 $14.78
51487300693 $14.78
New Find...
Driver side: 51-48-7-300-693 Price: $23.63
Passenger side: 51-48-7-300-694 Price: $22.96