Hello all, I am quite new on this forum. I am from France and recently acquired a famous Alpine 7909L headunit. I bought this unit as not working. This thread will be showing an inventory of the things that need to be fixed and the repair procedure. Any help will be appreciated. Here are some...

So I'm on a mission, to find out what the differences are between these units. I've never owned a 7909 (have other Alpines 7390, 7618, 7949), but recently had a little extra spending cash, and decided to acquire a couple 09's to try to answer some questions that I have not been able to...