Welcome! There are other ways to get BT such as a new head unit, or look up kits like Parrot that add bluetooth. If you combine Parrots/Connects2 (Connects2 is a cable that enables steering wheel control buttons w/Parrot) you should be set. As for the windshield cowl, I really don't think it's all that hard to replace. The key in removing the wipers is to mark where they were with blue tape on the windshield so it's easy to put them back on knowing the exact orientation. I'd say go for it. GL with car.