JBColorado

Hi I'm new to this blog. I have a 2020 RST Silverado 3.0 durmax. I forgot to order tow mirrors when I ordered my truck. I basically have manual folding, heated and power from the door with the standard mirrors that came on my truck. I located GM towing mirrors, # 84776100 from "shopchevyparts.com." Seemed to have best price $520 plus shipping to colorado $580. Looks like they added turn signals, cargo backup to these mirrors, etc. Was told I need to order new wiring harness for the mirrors, which will be another $160. Is it necessary to order these parts for both the Drivers and Passenger sides, (84662371 and 84662372), or can I tap into circuits to avoid these harnesses. Appreciate any input. Thx, JB

Hi I'm new to this blog. I have a 2020 RST Silverado 3.0 durmax. I forgot to order tow mirrors when I ordered my truck. I basically have manual folding, heated and power from the door with the standard mirrors that came on my truck. I located GM towing mirrors, # 84776100 from "shopchevyparts.com." Seemed to have best price $520 plus shipping to colorado $580. Looks like they added turn signals, cargo backup to these mirrors, etc. Was told I need to order new wiring harness for the mirrors, which will be another $160. Is it necessary to order these parts for both the Drivers and Passenger sides, (84662371 and 84662372), or can I tap into circuits to avoid these harnesses. Appreciate any input. Thx, JB