Not sure which model SLK you have, but I assume it's a 2008. Consider the iTronics Bluetooth system available through the SLK store for less than $1000. It's a aftermarket system, that's easily self-installed for much less than the cost for parts for the MB system and added cost of dealer installation. Check this LINK on my iTronics install on my wife's SLK 350. I have the MB system on my SLK 55 and the iTronic system duplicates the factory system at half the cost.
Welcome from Valrico, Florida!
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