Rv has 7 way and need to connect 4 way for dolly and 4 way for tow Car tow dolly with brakes – tow smart trailers Build heated dolly
Figure 4-84. Dolly air brake system, electrical light and wiring
Tow brakes dollies
Wiring diagram wire way tow trailer rv plug connector brake code dolly color etrailer lights controller battery codes
Car dolly wiring diagram .
.
