Mac VPN client routing conflict

[technodump]

A user connecting with a Mac using the built in Cisco VPN for IPSec is having routing issues. The location the client is at has the same subnet as our company network they are trying to connect to; 192.168.1.0/24. The VPN client connects fine but routing can't tell the difference from the client's site and ours. Their Windows machine at the site using the old Cisco VPN client works fine. 

Is there any software for Mac that will route traffic correctly?

I already asked if they can change the network to 10.0.1.0/24 which they can't do.

From the ASA config: 

access-list Company_splitTunnelAcl extended permit ip object-group LocalVPNnet 192.168.0.0 255.255.255.0

[Philip D'Ath]

This is a classic reason why I never deploy networks using 192.168.1.0/24 or 192.168.0.0/24.  The only way to resolve this is either the local or remote site have to change their subnet.