Good day, I would like to have a system installed in my new Fiesta ST. I was at 2 Car-hifi shops today and have 2 different possibilities heard which principle you find better. Version 1: Front and Sub to existing 4-channel end stage,Heck to Headunit Alpine 9855R Version 2: Front fully active to 4 channel end stage,Sub to separate power stage,no rear connected. Each with Sub in the spare wheel pit and tweeter in the A-pillar Both were at about 1500€ complete with Front-LS.Reserve what I already have is a 4-channel end stage a sub and the Alpine 9855R HU. If the car hifi stores tell you what, which is generally better. Version 1 would be X-Dream Car Audio in Markgröningen Version 2 Diabolo in Böblingen What good car hifis are there in the zip code area 7?