IF the MH does not have separate lights for brake and turn then you would have to rewire the MH for what you want. If it does then you need a 6 wire connection, 2x turn, brake, running lights, ground and charge line.
Regardless I recommed a 6 wire connection so that you have a charge line.
I towed my 04 CRV for years using it's combined brake/turn light with the above link, no issue for me.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland
Bob