Gruss Gott, Robert, und willkommen. Now that we've exhausted my German, what sound system did you go with? We have a member named Rad who has done quite a bit with the Das Mikro. I have a couple myself, providing sound in the WC51 and soon in the WC64. But Rad has reached new heights, with lights and multiple sounds from the Das Mikro. He has a site with all the stuff on the Das Mikro, so hopefully he'll chime in and you can see what he has to offer.
I think you need ten posts to get full access, that's to help keep the spam out. You'd be amazed at the people who want to sell us the weirdest stuff. It will go by quickly and I'll be looking forward to photos of your Jeep.