Hi Leutz, I’m driving 91er Jetta and I’m tired of getting my ears full! I have the original 87mm trombones in the dashboard as a loudspeaker – I’m sure I’ll get ear cancer from there soon. Would you like information about the replacement of the original loudspeakers in the dashboard – this 87mm system. Does it make sense to replace this ulcer or quake tube against a coaxial system or is this speaker size just nonsense and it can not come out there. Is it desha lb might be better bought a 2 way system anyway and built up the tweeter and down into the doors of the 13er bass midrange driver. I mean therefore to the original installation places of the Jetta I had already asked on the wrong side this question (that was in the 2er Golf and Jetta Forum – on 19.12.06 09:55) however a little more extensive and then I was referred here so please answer diligently! Greeting Andreas