Mercedes Sprinter Hymer W907/910 / High End Upgrade SMS / Fully integrated motorhome

This advanced high-end upgrade is suitable for Hymer motorhomes with a factory-installed Smart Multimedia System (SMS) with Helix V TWELVE DSP MK2. It includes the replacement of the speakers with Helix Ci7 and the option of integrating the original centre speaker and installing a subwoofer. This allows for the optimisation of the existing living area speakers and an upgrade with exciter technology. Existing SMS basic functions such as TV or BT connection are retained.