Hose HELP for 93' 500 SEL

[OneBadViper]

I have a 93' 500SEL that busted a water hose at the firewall. I cannot figure how to remove the round rubber bushing that the windshield wiper motor mounts to. The windshield wiper is out and out of the way. This one thing is holding me back from being able to get to the other end of the hose that need to be replaced. This is the hose that connects to the plastic "T" that always breaks. It attaches to the right side of the "T" and goes into the firewall. Any info will be greatly appriciated guys![ATTACH][/ATTACH]