回复：深刻的教训。兼紧急求助！

If you really need replace the wire, you need fish the wire not open the wall.
see the following link for reference
http://www.netday.org/install_fishabov.htm

所有跟帖： 

• Thanks. However, I need to run the wire horizontally through a -残阳如血- ♂ (409 bytes) () 12/18/2007 postreply 08:16:08

• please see inside. hopefully it will be helpful. -damingbai- ♂ (627 bytes) () 12/18/2007 postreply 09:12:42

• 回复：please see inside. hopefully it will be helpful. -David2005- ♂ (309 bytes) () 12/18/2007 postreply 09:24:11

• Do you know if the license is needed in his area? -damingbai- ♂ (0 bytes) () 12/18/2007 postreply 09:48:07

• 50/50. -David2005- ♂ (227 bytes) () 12/18/2007 postreply 11:30:25

• David2005,我得摔掉一把琴来谢你！ -残阳如血- ♂ (0 bytes) () 12/18/2007 postreply 10:45:01

• 回复：David2005,我得摔掉一把琴来谢你！ -david2005- ♂ (6 bytes) () 12/18/2007 postreply 11:22:59

• 回复：Thanks. However, I need to run the wire horizontally through -david2005- ♂ (135 bytes) () 12/18/2007 postreply 09:13:57

• good idea -残阳如血- ♂ (0 bytes) () 12/18/2007 postreply 10:47:21