Looking at the Tekonsha Prodigy RF Wireless Brake Controller (Tekonsha Prodigy RF Wireless Trailer Brake Controller - 1 to 3 Axles - Proportional Tekonsha Brake Controller 90250). Can anyone using it confirm the need to still take the signal wire from the front LCM module all the way to the back harness connector pin? I suspect from all the threads I've read, that regardless of whether you have the RF or hardwired version, this signal is still required as the OE harness doesn't have that pin pre-wired.

Thanks!

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Daily Drivers:
- 2008 535i, 320,000km
- 2004 X5 4.4, 01/2004 production, 420,000km
- 1997 328i, 350,000km

Track:
- 1996 328i, track/race car, ~300,000km

Winter:
- 2013 Ski-Doo MXZ X 800 E-TEC, trail can
- 2007 Ski-Doo MXZ Blizzard 800 HO
- 2001 Ski-Doo MXZ 600 w/800 engine, exhaust
- 1978 Ski-Doo Olympique 340 (vintage race sled)
- 1977 Ski-Doo Olympique 340E