USB/Audio interfaccia per mia macchina

Ciao Tutti,

Scusa mi per l'italiano mio, perché sono straniere e principiante in l'taliano.
Ho comprato una BMW 318D Touring con Navigatore Business ma non c'e USB. il mese di produzione e Feb 2009.
Ora ascolto musica da iPOD con AUX in bracciolo ma none e conveniente perche non posso controllare il iPOD con pulsante in sterzo.
Voglio montare il USB interfaccia in mia macchina.

Ieri sono andato una BMW dealer vicino milano, Mi Ha detto 700EUR + costo lavori per 06FL retrofit(65410445465) + High charging hands-free electronics (84109229743) + USB/AUX Y Cavo.
Ma penso il prezzo e troppo caro per solo USB collegamento.
Il VIN di machina mia e A622934, c'e più economica soluzione?

Here comes the English:
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Dear all,
I have purchased a BMW 318D touring with Business navigation, the car produced in Feb 2009. I am not sure it's MASK or CIC mid system.
Now I listen to music from my iPOD through AUX post in armrest, but it's not so convenient because I can't control iPOD through the button in steering.
I want to install USB interface for my car.

Yesterday I went to a BMW dealer near Milan, they quoted to me 700EUR + labor charge, the equipment includes: 06FL retrofit(65410445465) + High charging hands-free electronics (84109229743) + USB/AUX Y cable. them told me the most expensive parts are high charging hands-free electronics which I don't have in my car. I have been searching around in the internet, it seems true.
But anyway 700EUR+labor charge for me is too expensive consider for this price I can buy a new iPhone.

I am wonder is there any other solutions can be more save. for example I have heard that some High charging hands-free electronics will come with USB support directly.
My car VIN number is A622934.

I will be appreciated if you can tell me some suggestions or recommend someone or some places can modify my car at a lower price.

Grazie Mille!

Phoenix

 

Grazie smerci, ma potete confermare il Dension GW500 è funziona in macchina mia? il web da dension ha solo detto che e funzionare con navi professional. in Macchina mia c'è nava business.

Phoenix