I have just installed a set of HIDs and at first it was hard to reach the connectors, but it was doable. On the passenger side there is another connector, which is mounted to the car. I have pulled it off and it gave me a slight more length. I have managed to install it without removing anything. I haven't seen any difference in glare, then with the factory halogen setup.
This would be my favorite, the Polk Audio's in the dash and my aftermarket Gentex auto dim/compass/Homelink mirror. Next Infinity components in all four doors, a 10" Polk Audio MM1040 in my spare wheel and two Polk Audio amps. Working on a Kenwood nav unit, but I may get another one with a 7" screen and not 6.1".