i recently made a engine swap on my '86 ws6 i put in a '89L98TPI and the harness is different from the 86' in some ways well i ran trouble on the '86 windshield wiper motor and looked at a '88 trans-am and they are different my '86 windshield motor has a different connector and it has some rubber tubes that go inside the firewall were the '88 trans-am doesnt have the rubber tubes that go inside the firewall if ima replace the windshield wiper with the new '88 design what do i do with those hoses that go into the firewall