SL/R129: Replacement audio receiver for 1998 SL500
Thanks for any suggestions
https://blaupunkt.com/product/frankfurt-rcm-82-dab/ I have this, no carplay, but looks the best out there.

RetroSound Grand Prix 4HD. I set the button colors to amber. The same faceplate is installed over several different “motors” (their term) for the actual head unit functions. You get a USB jack in the back, note my cord running out from the right side of the console. Bluetooth is there - for your phone along with music from it. You also get the proprietary connector for a SiriusXM tuner. You lose the CD changer connection - that goes unused here. The 4HD “motor” adds an HD Radio tuner. You can see the microphone they include nestled in a bit to the left of the HVAC controls. If your car has the OEM telephone, then you have a very nice microphone already from the factory. I’ve read that you can find its connection behind your drug head unit and plug it into an aftermarket radio. I tried on mine and found a wire that had been neatly cut - no plug…. Why? Who knows…. Old cars, old stories…
Last edited by djcwardog; Sep 28, 2025 at 10:23 AM.




