Darkoz, what year is your E46?
Mines connected properly. If it's not connected, I get 0 reception. I would say the overall reception isn't bad when you're in an area with a strong signal. I notice the signal to dwindle away a lot when I am on the highways and passing along mountain sides where my stock one would stay strong.
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00 Jet Black 323i 5MT - Fuel Saver
02 Carbon Black M3 6MT - Fun Car
456whp/312wtq @ 8psi, No #'s yet at 9psi
4.10 / Headers / ESS VT2-550+