12 access cab headliner speakers

While playing with my fader I found that with it all on rear speakers I have speakers in my headliner I have never seen this before has anyone taken pics or replaced them when doing a speaker upgrade

 

From what I have been lead to believe, they are headliner audio exciters, something like the attached YouTube video. If I'm off base I'm sure someone will chime in.

http://youtu.be/N0wZ0qWH3sY

Frank

 

That is a cool video. Tx for postin it up, I wonder what the quality is compared to the stock

 

Yeah the AC has roof speakers just like the ones in the video for the most part. If you do an upgrade with good speakers these are not needed anymore.

 

I just read your post about the tweeter cover mod. What did you upgrade to.