Hi Javier
Thanks for your reply.
Next time I will contact you, but it is not around the corner of Madrid.
We have the feeling that driving with more than 4 of these loud monsters is a little too much for this fantastic environment.

BTW we followed your idea for a stroboscopic warning light which is allowed in Spain.
At my headrest I connected an extra RAM-boll for a lot of other purposes.
I use the existing RAM-fix for our cell-phone to hold an orange stroboscopic light van Osram
Amazon : “OSRAM LEDSL102 LEDguardian Road Flare Signal V16” € 29

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One ant does not know anything, 2000 are a super-intelligent brain. That's like this helpful forum.