There is no annual fee for the mercedes navigation system but there is a cost to purchase and install the system. The general cost of the system is from $800-$1200 depending on the cost of installation. http://www.benzworld.org/forums/audio-telematics-forum/1361910-install-navigation-system-w211.html
By reading your Owners Manual.
the code will in the owners manual or the audio system booklet
No, the 2005 Toyota Sienna does not come equipped with Bluetooth capabilities in its navigation system. Bluetooth features for hands-free calling and audio streaming became more common in vehicles in later years.
If there is a high end sound system, it will be listed in a separate booklet.
When changing the stereo system a diagram will help make sure a person knows where everything foes. A 1998 Renault audio system diagram can be found in the cars maintenance manual.
Consult your Owners Manuals.If you don't have owners manual go to https://www.fleet.ford.com/maintenance/owners_manuals/default.asp and you can get your owners manual from it.
The 1996 Ford Probe owners manual shows : fuse # 6 - 15 amp - audio system , dome and map lamps , etc. fuse # 7 - 15 amp - audio system , power mirrors fuse # 8 - 15 amp - audio system , cigar lighter
The 2010 Lexus RX-350 is 6 ft. 2.2 in. (74.2 in.)12-Speaker Premium Audio System for Navigation wide.
When you hear the navigation instructions, you can simply use the radio volume knob to increase or decrease the navigation volume. If you want to mute the navigation volume, push the "mute" button in the midst of audio navigation instructions.
There are several in-car navigation systems available, some with audio directions. If you have an iPhone, you can download the Apple Maps App, which offers navigation guidance.
It's the knock off of Panamax audio system.