Hello, I own the car radio Sony CDX-F7500 and am very happy in itself but it annoys me that if I want to access a certain song from my approx.8 GB large mp3 collection and the mp3-cd does not exactly have to find out the appropriate mp3-cd.Now I have thought about what I can do about it and let myself be advised. As far as I understand there are the following options: 1) a new radio with USB-Sticker function (go there also 8 GB-USD-Sticks?) 2)a new radio with DVD-Lesegeraet.So here I could then combine the collection on 2 DVDs and only have to change max 1 times (or is also dual-layer?)But unfortunately there is only very little of the variety on the market. 3)and this is now an idea I had earlier: maybe you can go to the radio what I have what to close what the problem is?I can connect additional audio-geraete is in the guide,but can this also be an external FP or a USB-St ich or something (holds somehow with adapter or whatever?) I just want to avoid that I have the RAdio, which is a very good one, just have to sell to have my collection together on one/max two datentraeger. Thanks for info from you experts Gruss Andreas