When I try doing a packet trace from an inside IP to an outside IP it says that there isn't a route. Although, I do have the following line in my config:
route outside 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx 1
xxx.xxx.xxx.xxx is the next hop to the outgoing router.
Ah okay, I see. Yes, the route will not show up in the routing table unless the interface is actually up. Once you plug a cable in to the outside interface and bring it up, that route will show up in the table and the packet-tracer will work as expected. Good catch.