Audi A4 B5 Speaker Adapter

Adapters to upgrade your Audi A4 B5 1995 speakers and change from the original  NOKIA 4" woofers to 5.25" ones.

Applicable to versions without a BOSE sound system (it may be compatible, but I haven't tested it).

In my case, I chose Hertz K 130 split-channel speakers with a 130mm woofer and a 24mm tweeter (there's no need to modify the door panel, as they fit the original recess).

I used a layer height of 0.2mm with 20% fill; it's more than enough for this case. If you wish, you can modify the printing parameters to your liking. Keep the supports enabled.

The screws used are for wood or plastic, M4x16; you can use other sizes. 

The model is suitable for both sides of the vehicle.