[Treybien]

There's a thread on this with installation directions. The Burmester tweeter gives great bang for the buck.

Bose Tweeter Upgrades - Improve your Bose Sound System!

https://www.718forum.com/threads/bose-tweeter-upgrades-improve-your-bose-sound-system.25690/

 

[Treybien]

Bose Tweeter Upgrade - Rennlist - Porsche Discussion Forums

718 GTS 4.0/GT4/GT4RS/Spyder/25th Anniversary - Bose Tweeter Upgrade - Thanks to Bob Z. for parts link and assistance in the install. Musicar noted in their thread that the Bose dash tweeters are a weak point in the system. Wow, were they right! This upgrade uses exact fitment drop in Burmester...

rennlist.com

This is the link that explains the switchover.

The connector you have has a tab that has to be removed. That's all. It took me over an hour with a little frustration, but the second one goes quickly, as there's unexplainable wiggling involved. Also nerves since you're pulling a piece from the dash that doesn't appear removable.

From the link
"The speaker has about 5 inches of wire slack. Disconnect connection and trim off the very small side tab. I didn’t get a picture, but it’ll be obvious. I used a sharp kitchen scissor to do this.

Reverse process and your done. First side took about an hour because leather dash, expensive parts, and extreme care. 2nd tweeter 5 minutes.

During install I used the fader to listen to Bose and Burm half way through install— huge difference. Bose blows above about 1/2 volume. If there was a lot of “wind noise” (lol) out driving previously I’d just turn the stereo down — just became too muddled.

The Burm upgrade has been up to 85mph with top down and incredible clarity. Lot more punch. Lowered my treble to neutral.

If you have Bose, I can’t recommend this upgrade enough…just do it.

Cheers"