Early Mercedes radios all had cassette players. In our modern smartphone age cassettes are quite useless. Newer Mercedes have integrated Bluetooth in sound systems. On this page I offer Bluetooth to be integrated into older models keeping original radio. In my cars goal was to have music streaming from phone via Bluetooth wireless along with hands-free phone calls.
Factory Mercedes sound systems sound very nice but lack any additional connections. Most people connect their phones to radios with cassette tape to 3.5mm wired adapter. I too used to connect my phone to radio with cassette tape to 3.5mm adapter. I never like that option for two reasons. First is sound quality was poor. Second is buzzing noise when phone is connected to car charger. After looking into available options for my 2000 S430 W220 model I did not find any that will suit my needs. I decided to open radio and hard wire aftermarket Bluetooth adapter into cassette tape circuit. After trying few available adapters I found one that worked very nice, I was very happy with results. Same adapter was installed into my 95 S600 and my customers’ radios. Same adapter can be installed into all Mercedes radios with cassette tape player. I need your original radio to be mailed to my Bronx address, I open radio and solder adapter into cassette circuit. Radio will not play cassettes anymore but adapter can be uninstalled to return radio to original state if needed.
Adapter installation is $349 plus shipping cost.
Here is a video I made right after installing adapter that works best into my 2000 S430. There is a need to have endless dummy cassette to be inside radio, cassette will come with adapter. Feel free to call me for details and shipping arrangements.