i wanna install a switch on the 12v constant line of the m2. the switch would kill all power to the m2 in the event the car is ever in for service etc. I found a perfect switch to match my console but the wire size for the switch is 24 ga. I have a 12ga goin from the battery to the m2 now. If i run the 12ga most of the way and just use a 1-2" length of 24ga just in and out of the switch will it degrade the power sent to the m2?