Not juging on the homo thing.
The area is hers, she is acknowledged as the coyote for that area. She already claimed that car as hers. You don't know the tunnel exits, so once you clear the tunnel through the wuxing one, you won't be able to reach it EVER without being guided here by her.
You can try to take the location by force now, or by some kind of con later (like helping her to set thing up and then take it over form her).
But then expect trouble from her friends, simple as that, if you can live with the consequences, go on, otherwise, you can use that location as you hideout if the need arise, or rent it for some semi-permanent HQ location.
now to the solution. bringing up a line of receivers through the tunnel is good, until one of them break (dire rat, biting one, or somebody walkign steal it, or one of them simply malfuncation), a satelite uplink, is good on the exit, where if left unprotected will be stolen as well. so low below you just won't be able to get connection. Either way a cheaper solution, will reduce the negative quality from dead-zone to network bottleneck, and you won't be able to upgrade entertainment past low.