Hi guys.. I have a issue with my 2006 xc90. I get a slight transmission slip once in a while. I read the codes and got 1 that will not erase. It's the transmission selector error. I do still get the gear indicator on the dash and correctly identifies what gear I'm in. I did recently have to remove the shifter covers to install a new radio. It has 2 wires going to it. Would the problem be that somehow the switch in it would cause this error message. Car shifts fine in all gears. Thanks for your advice.