You can not count on how your MH taillights are configured, eg. my 05 KSDP has separate red brake and amber turn signals----but the 7 pin
plug is wired for combined brake / turn signals.
This is on a Freightliner XC chassis.
Siggy & Ursula.
2011 Newmar DSDP 4020 (no Tag, no DEF, 07 emission),
FTL XCR ,ISL 400,2015 Jeep Cherokee Limited, 4x4, V6, Active Drive II, BrakeBuddy