I used 4M and ran them down the center of the vehicle. I had plenty of cable left over afterwards. If I had ran them down the side of the vehicle I would have wanted to go with the 6M just to be safe.
On a related note, I have that set of 3 4M Knukonceptz RCA's forsale if you're interested give me a PM or Email.
Lardy.
Previous owner of a 99 Mystique V6 MTX Black
Current owner of a 2004 Maxima SE MTX Silver
Forsale:
Yakima roof rack. Q-towers, bars, clips, locks. Good condition.
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