There is a FAQ regarding this very question in the FAQ emporium as well as the FAQs in the nav bar. http://www.mp3car.com/vbulletin/advf...iew&advfaqid=7b) How do I replace my existing radio head unit, while still utilising my existing speaker setup of my car. Do I need an amp, how do I connect it to my CarPC, what would the sound quality be like, do I need an external soundcard etc
You would just have the navigation running at the same time. To get it to mute the music when voices come over, you will have better luck running a front end.c) For GPS navigation, I would really like voice prompts etc. How do I get that working through my system, while playing music for example.
Please check out the software forum for information on this.d) Also, I would really need my existing Nokia E61 to be able to use my existing bluetooth handsfree carkit to play back through my car speakers and muting the radio, as it is curretly linked into my radio/speaker connections with a type of speaker relay connector. Is there any good Phone software that can maybe provide me with the same facilities, but through the CarPC.