I have an '04 TB EXT V8. The front leather seats are showing some wear and I was able to locate a matching set in very good condition. Here's the issue I noticed once I unloaded them after returning home. The replacements have the side air bags built into the seats & our seats do not. What issues will I have if I install the new ones? BTW, the replacements are also from an '04 TB. Do I need to disconnect the battery to remove & install?