Audio system in a Mercedes c300 w/HK

Customer came to us looking to get audio in here 2014 Mercedes c300 with the Harmon kardon system. She wanted to stay within a a specific budget so we decided to keep her factory speakers and radio. We amplified her existing speakers with a focal dsp to her own diamond 4 channel amp. Then using her diamond sub amp and diamond sub we gave her some bass to complete the sound and fill it out! This system definitely blew the Harmon kardon system away it volume and quality!
Www.actaudio.net
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Www. actaudio
Hartford ct
Vernon ct
Manchester ct

[@kevinbaldeo2868]

How did you drop down the back seat?

[@actaudiollc306]

Levers In the trunk